21031590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7877}}^1$

素因数の和:7976

約数の個数: 32

約数和(自身を含む): 51049440

約数和(自身を除く): 30017850

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 7877, 15754, 23631, 39385, 47262, 78770, 118155, 236310, 701053, 1402106, 2103159, 3505265, 4206318, 7010530, 10515795, 21031590]

約数ペア:

[(1, 21031590), (2, 10515795), (3, 7010530), (5, 4206318), (6, 3505265), (10, 2103159), (15, 1402106), (30, 701053), (89, 236310), (178, 118155), (267, 78770), (445, 47262), (534, 39385), (890, 23631), (1335, 15754), (2670, 7877)]