21613917

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 31622400

約数和(自身を除く): 10008483

約数列:

[1, 3, 13, 39, 89, 169, 267, 479, 507, 1157, 1437, 3471, 6227, 15041, 18681, 42631, 45123, 80951, 127893, 242853, 554203, 1662609, 7204639, 21613917]

約数ペア:

[(1, 21613917), (3, 7204639), (13, 1662609), (39, 554203), (89, 242853), (169, 127893), (267, 80951), (479, 45123), (507, 42631), (1157, 18681), (1437, 15041), (3471, 6227)]