21457704

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 56033280

約数和(自身を除く): 34575576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 151, 186, 191, 248, 302, 372, 382, 453, 573, 604, 744, 764, 906, 1146, 1208, 1528, 1812, 2292, 3624, 4584, 4681, 5921, 9362, 11842, 14043, 17763, 18724, 23684, 28086, 28841, 35526, 37448, 47368, 56172, 57682, 71052, 86523, 112344, 115364, 142104, 173046, 230728, 346092, 692184, 894071, 1788142, 2682213, 3576284, 5364426, 7152568, 10728852, 21457704]

約数ペア:

[(1, 21457704), (2, 10728852), (3, 7152568), (4, 5364426), (6, 3576284), (8, 2682213), (12, 1788142), (24, 894071), (31, 692184), (62, 346092), (93, 230728), (124, 173046), (151, 142104), (186, 115364), (191, 112344), (248, 86523), (302, 71052), (372, 57682), (382, 56172), (453, 47368), (573, 37448), (604, 35526), (744, 28841), (764, 28086), (906, 23684), (1146, 18724), (1208, 17763), (1528, 14043), (1812, 11842), (2292, 9362), (3624, 5921), (4584, 4681)]