21104104

素因数分解:

$2^3\times 7^3\times {\mathrm{7691}}^1$

素因数の和:7718

約数の個数: 32

約数和(自身を含む): 46152000

約数和(自身を除く): 25047896

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7691, 15382, 30764, 53837, 61528, 107674, 215348, 376859, 430696, 753718, 1507436, 2638013, 3014872, 5276026, 10552052, 21104104]

約数ペア:

[(1, 21104104), (2, 10552052), (4, 5276026), (7, 3014872), (8, 2638013), (14, 1507436), (28, 753718), (49, 430696), (56, 376859), (98, 215348), (196, 107674), (343, 61528), (392, 53837), (686, 30764), (1372, 15382), (2744, 7691)]