31998405

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 53892864

約数和(自身を除く): 21894459

約数列:

[1, 3, 5, 15, 23, 69, 115, 137, 345, 411, 677, 685, 2031, 2055, 3151, 3385, 9453, 10155, 15571, 15755, 46713, 47265, 77855, 92749, 233565, 278247, 463745, 1391235, 2133227, 6399681, 10666135, 31998405]

約数ペア:

[(1, 31998405), (3, 10666135), (5, 6399681), (15, 2133227), (23, 1391235), (69, 463745), (115, 278247), (137, 233565), (345, 92749), (411, 77855), (677, 47265), (685, 46713), (2031, 15755), (2055, 15571), (3151, 10155), (3385, 9453)]