21372592

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 42872256

約数和(自身を除く): 21499664

約数列:

[1, 2, 4, 8, 16, 47, 94, 97, 188, 194, 293, 376, 388, 586, 752, 776, 1172, 1552, 2344, 4559, 4688, 9118, 13771, 18236, 27542, 28421, 36472, 55084, 56842, 72944, 110168, 113684, 220336, 227368, 454736, 1335787, 2671574, 5343148, 10686296, 21372592]

約数ペア:

[(1, 21372592), (2, 10686296), (4, 5343148), (8, 2671574), (16, 1335787), (47, 454736), (94, 227368), (97, 220336), (188, 113684), (194, 110168), (293, 72944), (376, 56842), (388, 55084), (586, 36472), (752, 28421), (776, 27542), (1172, 18236), (1552, 13771), (2344, 9118), (4559, 4688)]