20679855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5323}}^1$

素因数の和:5375

約数の個数: 32

約数和(自身を含む): 38843904

約数和(自身を除く): 18164049

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5323, 15969, 26615, 37261, 79845, 111783, 186305, 196951, 558915, 590853, 984755, 1378657, 2954265, 4135971, 6893285, 20679855]

約数ペア:

[(1, 20679855), (3, 6893285), (5, 4135971), (7, 2954265), (15, 1378657), (21, 984755), (35, 590853), (37, 558915), (105, 196951), (111, 186305), (185, 111783), (259, 79845), (555, 37261), (777, 26615), (1295, 15969), (3885, 5323)]