21446040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:254

約数の個数: 192

約数和(自身を含む): 81204480

約数和(自身を除く): 59758440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 121, 132, 140, 154, 165, 168, 210, 211, 220, 231, 242, 264, 280, 308, 330, 363, 385, 420, 422, 440, 462, 484, 605, 616, 633, 660, 726, 770, 840, 844, 847, 924, 968, 1055, 1155, 1210, 1266, 1320, 1452, 1477, 1540, 1688, 1694, 1815, 1848, 2110, 2310, 2321, 2420, 2532, 2541, 2904, 2954, 3080, 3165, 3388, 3630, 4220, 4235, 4431, 4620, 4642, 4840, 5064, 5082, 5908, 6330, 6776, 6963, 7260, 7385, 8440, 8470, 8862, 9240, 9284, 10164, 11605, 11816, 12660, 12705, 13926, 14520, 14770, 16247, 16940, 17724, 18568, 20328, 22155, 23210, 25320, 25410, 25531, 27852, 29540, 32494, 33880, 34815, 35448, 44310, 46420, 48741, 50820, 51062, 55704, 59080, 64988, 69630, 76593, 81235, 88620, 92840, 97482, 101640, 102124, 127655, 129976, 139260, 153186, 162470, 177240, 178717, 194964, 204248, 243705, 255310, 278520, 306372, 324940, 357434, 382965, 389928, 487410, 510620, 536151, 612744, 649880, 714868, 765930, 893585, 974820, 1021240, 1072302, 1429736, 1531860, 1787170, 1949640, 2144604, 2680755, 3063720, 3574340, 4289208, 5361510, 7148680, 10723020, 21446040]

約数ペア:

[(1, 21446040), (2, 10723020), (3, 7148680), (4, 5361510), (5, 4289208), (6, 3574340), (7, 3063720), (8, 2680755), (10, 2144604), (11, 1949640), (12, 1787170), (14, 1531860), (15, 1429736), (20, 1072302), (21, 1021240), (22, 974820), (24, 893585), (28, 765930), (30, 714868), (33, 649880), (35, 612744), (40, 536151), (42, 510620), (44, 487410), (55, 389928), (56, 382965), (60, 357434), (66, 324940), (70, 306372), (77, 278520), (84, 255310), (88, 243705), (105, 204248), (110, 194964), (120, 178717), (121, 177240), (132, 162470), (140, 153186), (154, 139260), (165, 129976), (168, 127655), (210, 102124), (211, 101640), (220, 97482), (231, 92840), (242, 88620), (264, 81235), (280, 76593), (308, 69630), (330, 64988), (363, 59080), (385, 55704), (420, 51062), (422, 50820), (440, 48741), (462, 46420), (484, 44310), (605, 35448), (616, 34815), (633, 33880), (660, 32494), (726, 29540), (770, 27852), (840, 25531), (844, 25410), (847, 25320), (924, 23210), (968, 22155), (1055, 20328), (1155, 18568), (1210, 17724), (1266, 16940), (1320, 16247), (1452, 14770), (1477, 14520), (1540, 13926), (1688, 12705), (1694, 12660), (1815, 11816), (1848, 11605), (2110, 10164), (2310, 9284), (2321, 9240), (2420, 8862), (2532, 8470), (2541, 8440), (2904, 7385), (2954, 7260), (3080, 6963), (3165, 6776), (3388, 6330), (3630, 5908), (4220, 5082), (4235, 5064), (4431, 4840), (4620, 4642)]