21198040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14323}}^1$

素因数の和:14371

約数の個数: 32

約数和(自身を含む): 48988080

約数和(自身を除く): 27790040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14323, 28646, 57292, 71615, 114584, 143230, 286460, 529951, 572920, 1059902, 2119804, 2649755, 4239608, 5299510, 10599020, 21198040]

約数ペア:

[(1, 21198040), (2, 10599020), (4, 5299510), (5, 4239608), (8, 2649755), (10, 2119804), (20, 1059902), (37, 572920), (40, 529951), (74, 286460), (148, 143230), (185, 114584), (296, 71615), (370, 57292), (740, 28646), (1480, 14323)]