18185776

素因数分解:

$2^4\times 7^1\times {\mathrm{397}}^1\times {\mathrm{409}}^1$

素因数の和:821

約数の個数: 40

約数和(自身を含む): 40468640

約数和(自身を除く): 22282864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 397, 409, 794, 818, 1588, 1636, 2779, 2863, 3176, 3272, 5558, 5726, 6352, 6544, 11116, 11452, 22232, 22904, 44464, 45808, 162373, 324746, 649492, 1136611, 1298984, 2273222, 2597968, 4546444, 9092888, 18185776]

約数ペア:

[(1, 18185776), (2, 9092888), (4, 4546444), (7, 2597968), (8, 2273222), (14, 1298984), (16, 1136611), (28, 649492), (56, 324746), (112, 162373), (397, 45808), (409, 44464), (794, 22904), (818, 22232), (1588, 11452), (1636, 11116), (2779, 6544), (2863, 6352), (3176, 5726), (3272, 5558)]