21047631

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{1117}}^1$

素因数の和:1702

約数の個数: 16

約数和(自身を含む): 30695808

約数和(自身を除く): 9648177

約数列:

[1, 3, 11, 33, 571, 1117, 1713, 3351, 6281, 12287, 18843, 36861, 637807, 1913421, 7015877, 21047631]

約数ペア:

[(1, 21047631), (3, 7015877), (11, 1913421), (33, 637807), (571, 36861), (1117, 18843), (1713, 12287), (3351, 6281)]