21521542

素因数分解:

$2^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{9431}}^1$

素因数の和:9603

約数の個数: 16

約数和(自身を含む): 37124352

約数和(自身を除く): 15602810

約数列:

[1, 2, 7, 14, 163, 326, 1141, 2282, 9431, 18862, 66017, 132034, 1537253, 3074506, 10760771, 21521542]

約数ペア:

[(1, 21521542), (2, 10760771), (7, 3074506), (14, 1537253), (163, 132034), (326, 66017), (1141, 18862), (2282, 9431)]