21796255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 8363105

約数列:

[1, 5, 13, 29, 31, 65, 145, 155, 373, 377, 403, 899, 1865, 1885, 2015, 4495, 4849, 10817, 11563, 11687, 24245, 54085, 57815, 58435, 140621, 150319, 335327, 703105, 751595, 1676635, 4359251, 21796255]

約数ペア:

[(1, 21796255), (5, 4359251), (13, 1676635), (29, 751595), (31, 703105), (65, 335327), (145, 150319), (155, 140621), (373, 58435), (377, 57815), (403, 54085), (899, 24245), (1865, 11687), (1885, 11563), (2015, 10817), (4495, 4849)]