20693895

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 34504704

約数和(自身を除く): 13810809

約数列:

[1, 3, 5, 15, 31, 93, 155, 191, 233, 465, 573, 699, 955, 1165, 2865, 3495, 5921, 7223, 17763, 21669, 29605, 36115, 44503, 88815, 108345, 133509, 222515, 667545, 1379593, 4138779, 6897965, 20693895]

約数ペア:

[(1, 20693895), (3, 6897965), (5, 4138779), (15, 1379593), (31, 667545), (93, 222515), (155, 133509), (191, 108345), (233, 88815), (465, 44503), (573, 36115), (699, 29605), (955, 21669), (1165, 17763), (2865, 7223), (3495, 5921)]