21335138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1$

素因数の和:1262

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 16300702

約数列:

[1, 2, 11, 19, 22, 38, 43, 86, 209, 418, 473, 817, 946, 1187, 1634, 2374, 8987, 13057, 17974, 22553, 26114, 45106, 51041, 102082, 248083, 496166, 561451, 969779, 1122902, 1939558, 10667569, 21335138]

約数ペア:

[(1, 21335138), (2, 10667569), (11, 1939558), (19, 1122902), (22, 969779), (38, 561451), (43, 496166), (86, 248083), (209, 102082), (418, 51041), (473, 45106), (817, 26114), (946, 22553), (1187, 17974), (1634, 13057), (2374, 8987)]