21451456

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:126

約数の個数: 112

約数和(自身を含む): 51206400

約数和(自身を除く): 29754944

約数列:

[1, 2, 4, 8, 13, 16, 19, 23, 26, 32, 38, 46, 52, 59, 64, 76, 92, 104, 118, 152, 184, 208, 236, 247, 299, 304, 368, 416, 437, 472, 494, 598, 608, 736, 767, 832, 874, 944, 988, 1121, 1196, 1216, 1357, 1472, 1534, 1748, 1888, 1976, 2242, 2392, 2714, 3068, 3496, 3776, 3952, 4484, 4784, 5428, 5681, 6136, 6992, 7904, 8968, 9568, 10856, 11362, 12272, 13984, 14573, 15808, 17641, 17936, 19136, 21712, 22724, 24544, 25783, 27968, 29146, 35282, 35872, 43424, 45448, 49088, 51566, 58292, 70564, 71744, 86848, 90896, 103132, 116584, 141128, 181792, 206264, 233168, 282256, 335179, 363584, 412528, 466336, 564512, 670358, 825056, 932672, 1129024, 1340716, 1650112, 2681432, 5362864, 10725728, 21451456]

約数ペア:

[(1, 21451456), (2, 10725728), (4, 5362864), (8, 2681432), (13, 1650112), (16, 1340716), (19, 1129024), (23, 932672), (26, 825056), (32, 670358), (38, 564512), (46, 466336), (52, 412528), (59, 363584), (64, 335179), (76, 282256), (92, 233168), (104, 206264), (118, 181792), (152, 141128), (184, 116584), (208, 103132), (236, 90896), (247, 86848), (299, 71744), (304, 70564), (368, 58292), (416, 51566), (437, 49088), (472, 45448), (494, 43424), (598, 35872), (608, 35282), (736, 29146), (767, 27968), (832, 25783), (874, 24544), (944, 22724), (988, 21712), (1121, 19136), (1196, 17936), (1216, 17641), (1357, 15808), (1472, 14573), (1534, 13984), (1748, 12272), (1888, 11362), (1976, 10856), (2242, 9568), (2392, 8968), (2714, 7904), (3068, 6992), (3496, 6136), (3776, 5681), (3952, 5428), (4484, 4784)]