21670736

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43691}}^1$

素因数の和:43730

約数の個数: 20

約数和(自身を含む): 43342464

約数和(自身を除く): 21671728

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43691, 87382, 174764, 349528, 699056, 1354421, 2708842, 5417684, 10835368, 21670736]

約数ペア:

[(1, 21670736), (2, 10835368), (4, 5417684), (8, 2708842), (16, 1354421), (31, 699056), (62, 349528), (124, 174764), (248, 87382), (496, 43691)]