861705

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 1653120

約数和(自身を除く): 791415

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 491, 585, 1473, 1755, 2455, 4419, 6383, 7365, 13257, 19149, 22095, 31915, 57447, 66285, 95745, 172341, 287235, 861705]

約数ペア:

[(1, 861705), (3, 287235), (5, 172341), (9, 95745), (13, 66285), (15, 57447), (27, 31915), (39, 22095), (45, 19149), (65, 13257), (117, 7365), (135, 6383), (195, 4419), (351, 2455), (491, 1755), (585, 1473)]