21971631

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{823}}^1$

素因数の和:1646

約数の個数: 16

約数和(自身を含む): 32037120

約数和(自身を除く): 10065489

約数列:

[1, 3, 11, 33, 809, 823, 2427, 2469, 8899, 9053, 26697, 27159, 665807, 1997421, 7323877, 21971631]

約数ペア:

[(1, 21971631), (3, 7323877), (11, 1997421), (33, 665807), (809, 27159), (823, 26697), (2427, 9053), (2469, 8899)]