18421340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131581}}^1$

素因数の和:131597

約数の個数: 24

約数和(自身を含む): 44211552

約数和(自身を除く): 25790212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131581, 263162, 526324, 657905, 921067, 1315810, 1842134, 2631620, 3684268, 4605335, 9210670, 18421340]

約数ペア:

[(1, 18421340), (2, 9210670), (4, 4605335), (5, 3684268), (7, 2631620), (10, 1842134), (14, 1315810), (20, 921067), (28, 657905), (35, 526324), (70, 263162), (140, 131581)]