21559545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68443}}^1$

素因数の和:68461

約数の個数: 24

約数和(自身を含む): 42709056

約数和(自身を除く): 21149511

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68443, 205329, 342215, 479101, 615987, 1026645, 1437303, 2395505, 3079935, 4311909, 7186515, 21559545]

約数ペア:

[(1, 21559545), (3, 7186515), (5, 4311909), (7, 3079935), (9, 2395505), (15, 1437303), (21, 1026645), (35, 615987), (45, 479101), (63, 342215), (105, 205329), (315, 68443)]