221497263

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 358735104

約数和(自身を除く): 137237841

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 173, 279, 353, 403, 519, 1059, 1209, 1557, 2249, 3177, 3627, 4589, 5363, 6747, 10943, 13767, 16089, 20241, 32829, 41301, 48267, 61069, 69719, 98487, 142259, 183207, 209157, 426777, 549621, 627471, 793897, 1280331, 1893139, 2381691, 5679417, 7145073, 17038251, 24610807, 73832421, 221497263]

約数ペア:

[(1, 221497263), (3, 73832421), (9, 24610807), (13, 17038251), (31, 7145073), (39, 5679417), (93, 2381691), (117, 1893139), (173, 1280331), (279, 793897), (353, 627471), (403, 549621), (519, 426777), (1059, 209157), (1209, 183207), (1557, 142259), (2249, 98487), (3177, 69719), (3627, 61069), (4589, 48267), (5363, 41301), (6747, 32829), (10943, 20241), (13767, 16089)]