21144890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{523}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 41198976

約数和(自身を除く): 20054086

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 523, 622, 1046, 1555, 2615, 3110, 4043, 5230, 6799, 8086, 13598, 20215, 33995, 40430, 67990, 162653, 325306, 813265, 1626530, 2114489, 4228978, 10572445, 21144890]

約数ペア:

[(1, 21144890), (2, 10572445), (5, 4228978), (10, 2114489), (13, 1626530), (26, 813265), (65, 325306), (130, 162653), (311, 67990), (523, 40430), (622, 33995), (1046, 20215), (1555, 13598), (2615, 8086), (3110, 6799), (4043, 5230)]