20355855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{751}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 35374080

約数和(自身を除く): 15018225

約数列:

[1, 3, 5, 13, 15, 39, 65, 139, 195, 417, 695, 751, 1807, 2085, 2253, 3755, 5421, 9035, 9763, 11265, 27105, 29289, 48815, 104389, 146445, 313167, 521945, 1357057, 1565835, 4071171, 6785285, 20355855]

約数ペア:

[(1, 20355855), (3, 6785285), (5, 4071171), (13, 1565835), (15, 1357057), (39, 521945), (65, 313167), (139, 146445), (195, 104389), (417, 48815), (695, 29289), (751, 27105), (1807, 11265), (2085, 9763), (2253, 9035), (3755, 5421)]