221661531

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3041}}^1$

素因数の和:3156

約数の個数: 48

約数和(自身を含む): 398623680

約数和(自身を除く): 176962149

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 89, 91, 117, 267, 273, 623, 801, 819, 1157, 1869, 3041, 3471, 5607, 8099, 9123, 10413, 21287, 24297, 27369, 39533, 63861, 72891, 118599, 191583, 270649, 276731, 355797, 811947, 830193, 1894543, 2435841, 2490579, 3518437, 5683629, 10555311, 17050887, 24629059, 31665933, 73887177, 221661531]

約数ペア:

[(1, 221661531), (3, 73887177), (7, 31665933), (9, 24629059), (13, 17050887), (21, 10555311), (39, 5683629), (63, 3518437), (89, 2490579), (91, 2435841), (117, 1894543), (267, 830193), (273, 811947), (623, 355797), (801, 276731), (819, 270649), (1157, 191583), (1869, 118599), (3041, 72891), (3471, 63861), (5607, 39533), (8099, 27369), (9123, 24297), (10413, 21287)]