21695199

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1151}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 29712384

約数和(自身を除く): 8017185

約数列:

[1, 3, 61, 103, 183, 309, 1151, 3453, 6283, 18849, 70211, 118553, 210633, 355659, 7231733, 21695199]

約数ペア:

[(1, 21695199), (3, 7231733), (61, 355659), (103, 210633), (183, 118553), (309, 70211), (1151, 18849), (3453, 6283)]