221475501

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{269}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 358525440

約数和(自身を除く): 137049939

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 227, 269, 279, 403, 681, 807, 1209, 2043, 2421, 2951, 3497, 3627, 7037, 8339, 8853, 10491, 21111, 25017, 26559, 31473, 61063, 63333, 75051, 91481, 108407, 183189, 274443, 325221, 549567, 793819, 823329, 975663, 1892953, 2381457, 5678859, 7144371, 17036577, 24608389, 73825167, 221475501]

約数ペア:

[(1, 221475501), (3, 73825167), (9, 24608389), (13, 17036577), (31, 7144371), (39, 5678859), (93, 2381457), (117, 1892953), (227, 975663), (269, 823329), (279, 793819), (403, 549567), (681, 325221), (807, 274443), (1209, 183189), (2043, 108407), (2421, 91481), (2951, 75051), (3497, 63333), (3627, 61063), (7037, 31473), (8339, 26559), (8853, 25017), (10491, 21111)]