21368913

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{2593}}^1$

素因数の和:2704

約数の個数: 16

約数和(自身を含む): 29633856

約数和(自身を除く): 8264943

約数列:

[1, 3, 41, 67, 123, 201, 2593, 2747, 7779, 8241, 106313, 173731, 318939, 521193, 7122971, 21368913]

約数ペア:

[(1, 21368913), (3, 7122971), (41, 521193), (67, 318939), (123, 173731), (201, 106313), (2593, 8241), (2747, 7779)]