21691109

素因数分解:

${\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 24288000

約数和(自身を除く): 2596891

約数列:

[1, 11, 79, 109, 229, 869, 1199, 2519, 8611, 18091, 24961, 94721, 199001, 274571, 1971919, 21691109]

約数ペア:

[(1, 21691109), (11, 1971919), (79, 274571), (109, 199001), (229, 94721), (869, 24961), (1199, 18091), (2519, 8611)]