21580874

素因数分解:

$2^1\times 7^3\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 38179200

約数和(自身を除く): 16598326

約数列:

[1, 2, 7, 14, 49, 98, 163, 193, 326, 343, 386, 686, 1141, 1351, 2282, 2702, 7987, 9457, 15974, 18914, 31459, 55909, 62918, 66199, 111818, 132398, 220213, 440426, 1541491, 3082982, 10790437, 21580874]

約数ペア:

[(1, 21580874), (2, 10790437), (7, 3082982), (14, 1541491), (49, 440426), (98, 220213), (163, 132398), (193, 111818), (326, 66199), (343, 62918), (386, 55909), (686, 31459), (1141, 18914), (1351, 15974), (2282, 9457), (2702, 7987)]