19932055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 28623168

約数和(自身を除く): 8691113

約数列:

[1, 5, 11, 13, 55, 61, 65, 143, 305, 457, 671, 715, 793, 2285, 3355, 3965, 5027, 5941, 8723, 25135, 27877, 29705, 43615, 65351, 139385, 306647, 326755, 362401, 1533235, 1812005, 3986411, 19932055]

約数ペア:

[(1, 19932055), (5, 3986411), (11, 1812005), (13, 1533235), (55, 362401), (61, 326755), (65, 306647), (143, 139385), (305, 65351), (457, 43615), (671, 29705), (715, 27877), (793, 25135), (2285, 8723), (3355, 5941), (3965, 5027)]