18861795

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4507}}^1$

素因数の和:4552

約数の個数: 32

約数和(自身を含む): 34621440

約数和(自身を除く): 15759645

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 4507, 13521, 22535, 40563, 67605, 121689, 139717, 202815, 419151, 608445, 698585, 1257453, 2095755, 3772359, 6287265, 18861795]

約数ペア:

[(1, 18861795), (3, 6287265), (5, 3772359), (9, 2095755), (15, 1257453), (27, 698585), (31, 608445), (45, 419151), (93, 202815), (135, 139717), (155, 121689), (279, 67605), (465, 40563), (837, 22535), (1395, 13521), (4185, 4507)]