18501428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2113}}^1$

素因数の和:2327

約数の個数: 24

約数和(自身を含む): 35515200

約数和(自身を除く): 17013772

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2113, 2189, 4226, 4378, 8452, 8756, 23243, 46486, 92972, 420487, 840974, 1681948, 4625357, 9250714, 18501428]

約数ペア:

[(1, 18501428), (2, 9250714), (4, 4625357), (11, 1681948), (22, 840974), (44, 420487), (199, 92972), (398, 46486), (796, 23243), (2113, 8756), (2189, 8452), (4226, 4378)]