18879770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20747}}^1$

素因数の和:20774

約数の個数: 32

約数和(自身を含む): 41827968

約数和(自身を除く): 22948198

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20747, 41494, 103735, 145229, 207470, 269711, 290458, 539422, 726145, 1348555, 1452290, 1887977, 2697110, 3775954, 9439885, 18879770]

約数ペア:

[(1, 18879770), (2, 9439885), (5, 3775954), (7, 2697110), (10, 1887977), (13, 1452290), (14, 1348555), (26, 726145), (35, 539422), (65, 290458), (70, 269711), (91, 207470), (130, 145229), (182, 103735), (455, 41494), (910, 20747)]