21678273

素因数分解:

$3^6\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:376

約数の個数: 28

約数和(自身を含む): 32894928

約数和(自身を除く): 11216655

約数列:

[1, 3, 9, 27, 81, 131, 227, 243, 393, 681, 729, 1179, 2043, 3537, 6129, 10611, 18387, 29737, 31833, 55161, 89211, 95499, 165483, 267633, 802899, 2408697, 7226091, 21678273]

約数ペア:

[(1, 21678273), (3, 7226091), (9, 2408697), (27, 802899), (81, 267633), (131, 165483), (227, 95499), (243, 89211), (393, 55161), (681, 31833), (729, 29737), (1179, 18387), (2043, 10611), (3537, 6129)]