20726115

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 13820061

約数列:

[1, 3, 5, 15, 41, 67, 123, 201, 205, 335, 503, 615, 1005, 1509, 2515, 2747, 7545, 8241, 13735, 20623, 33701, 41205, 61869, 101103, 103115, 168505, 309345, 505515, 1381741, 4145223, 6908705, 20726115]

約数ペア:

[(1, 20726115), (3, 6908705), (5, 4145223), (15, 1381741), (41, 505515), (67, 309345), (123, 168505), (201, 103115), (205, 101103), (335, 61869), (503, 41205), (615, 33701), (1005, 20623), (1509, 13735), (2515, 8241), (2747, 7545)]