161088021

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{86467}}^1$

素因数の和:86502

約数の個数: 20

約数和(自身を含む): 251103072

約数和(自身を除く): 90015051

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 86467, 259401, 778203, 1988741, 2334609, 5966223, 7003827, 17898669, 53696007, 161088021]

約数ペア:

[(1, 161088021), (3, 53696007), (9, 17898669), (23, 7003827), (27, 5966223), (69, 2334609), (81, 1988741), (207, 778203), (621, 259401), (1863, 86467)]