21896392

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 49392000

約数和(自身を除く): 27495608

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 97, 116, 139, 194, 203, 232, 278, 388, 406, 556, 679, 776, 812, 973, 1112, 1358, 1624, 1946, 2716, 2813, 3892, 4031, 5432, 5626, 7784, 8062, 11252, 13483, 16124, 19691, 22504, 26966, 28217, 32248, 39382, 53932, 56434, 78764, 94381, 107864, 112868, 157528, 188762, 225736, 377524, 391007, 755048, 782014, 1564028, 2737049, 3128056, 5474098, 10948196, 21896392]

約数ペア:

[(1, 21896392), (2, 10948196), (4, 5474098), (7, 3128056), (8, 2737049), (14, 1564028), (28, 782014), (29, 755048), (56, 391007), (58, 377524), (97, 225736), (116, 188762), (139, 157528), (194, 112868), (203, 107864), (232, 94381), (278, 78764), (388, 56434), (406, 53932), (556, 39382), (679, 32248), (776, 28217), (812, 26966), (973, 22504), (1112, 19691), (1358, 16124), (1624, 13483), (1946, 11252), (2716, 8062), (2813, 7784), (3892, 5626), (4031, 5432)]