21157344

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5651}}^1$

素因数の和:5680

約数の個数: 72

約数和(自身を含む): 64805832

約数和(自身を除く): 43648488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5651, 11302, 16953, 22604, 33906, 45208, 50859, 67812, 73463, 90416, 101718, 135624, 146926, 180832, 203436, 220389, 271248, 293852, 406872, 440778, 542496, 587704, 661167, 813744, 881556, 1175408, 1322334, 1627488, 1763112, 2350816, 2644668, 3526224, 5289336, 7052448, 10578672, 21157344]

約数ペア:

[(1, 21157344), (2, 10578672), (3, 7052448), (4, 5289336), (6, 3526224), (8, 2644668), (9, 2350816), (12, 1763112), (13, 1627488), (16, 1322334), (18, 1175408), (24, 881556), (26, 813744), (32, 661167), (36, 587704), (39, 542496), (48, 440778), (52, 406872), (72, 293852), (78, 271248), (96, 220389), (104, 203436), (117, 180832), (144, 146926), (156, 135624), (208, 101718), (234, 90416), (288, 73463), (312, 67812), (416, 50859), (468, 45208), (624, 33906), (936, 22604), (1248, 16953), (1872, 11302), (3744, 5651)]