21891868

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{4603}}^1$

素因数の和:4677

約数の個数: 24

約数和(自身を含む): 40607280

約数和(自身を除く): 18715412

約数列:

[1, 2, 4, 29, 41, 58, 82, 116, 164, 1189, 2378, 4603, 4756, 9206, 18412, 133487, 188723, 266974, 377446, 533948, 754892, 5472967, 10945934, 21891868]

約数ペア:

[(1, 21891868), (2, 10945934), (4, 5472967), (29, 754892), (41, 533948), (58, 377446), (82, 266974), (116, 188723), (164, 133487), (1189, 18412), (2378, 9206), (4603, 4756)]