21798770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3499}}^1$

素因数の和:3602

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 23561230

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3499, 6230, 6998, 17495, 24493, 34990, 48986, 122465, 244930, 311411, 622822, 1557055, 2179877, 3114110, 4359754, 10899385, 21798770]

約数ペア:

[(1, 21798770), (2, 10899385), (5, 4359754), (7, 3114110), (10, 2179877), (14, 1557055), (35, 622822), (70, 311411), (89, 244930), (178, 122465), (445, 48986), (623, 34990), (890, 24493), (1246, 17495), (3115, 6998), (3499, 6230)]