18560997

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 33441408

約数和(自身を除く): 14880411

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 131, 173, 273, 393, 519, 819, 917, 1179, 1211, 1557, 1703, 2249, 2751, 3633, 5109, 6747, 8253, 10899, 11921, 15327, 15743, 20241, 22663, 35763, 47229, 67989, 107289, 141687, 158641, 203967, 294619, 475923, 883857, 1427769, 2062333, 2651571, 6186999, 18560997]

約数ペア:

[(1, 18560997), (3, 6186999), (7, 2651571), (9, 2062333), (13, 1427769), (21, 883857), (39, 475923), (63, 294619), (91, 203967), (117, 158641), (131, 141687), (173, 107289), (273, 67989), (393, 47229), (519, 35763), (819, 22663), (917, 20241), (1179, 15743), (1211, 15327), (1557, 11921), (1703, 10899), (2249, 8253), (2751, 6747), (3633, 5109)]