261208233

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7517}}^1$

素因数の和:7556

約数の個数: 48

約数和(自身を含む): 459740736

約数和(自身を除く): 198532503

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 243, 297, 351, 429, 891, 1053, 1287, 2673, 3159, 3861, 7517, 11583, 22551, 34749, 67653, 82687, 97721, 202959, 248061, 293163, 608877, 744183, 879489, 1074931, 1826631, 2232549, 2638467, 3224793, 6697647, 7915401, 9674379, 20092941, 23746203, 29023137, 87069411, 261208233]

約数ペア:

[(1, 261208233), (3, 87069411), (9, 29023137), (11, 23746203), (13, 20092941), (27, 9674379), (33, 7915401), (39, 6697647), (81, 3224793), (99, 2638467), (117, 2232549), (143, 1826631), (243, 1074931), (297, 879489), (351, 744183), (429, 608877), (891, 293163), (1053, 248061), (1287, 202959), (2673, 97721), (3159, 82687), (3861, 67653), (7517, 34749), (11583, 22551)]