20826729

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{733}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 38473344

約数和(自身を除く): 17646615

約数列:

[1, 3, 7, 9, 11, 21, 33, 41, 63, 77, 99, 123, 231, 287, 369, 451, 693, 733, 861, 1353, 2199, 2583, 3157, 4059, 5131, 6597, 8063, 9471, 15393, 24189, 28413, 30053, 46179, 56441, 72567, 90159, 169323, 210371, 270477, 330583, 507969, 631113, 991749, 1893339, 2314081, 2975247, 6942243, 20826729]

約数ペア:

[(1, 20826729), (3, 6942243), (7, 2975247), (9, 2314081), (11, 1893339), (21, 991749), (33, 631113), (41, 507969), (63, 330583), (77, 270477), (99, 210371), (123, 169323), (231, 90159), (287, 72567), (369, 56441), (451, 46179), (693, 30053), (733, 28413), (861, 24189), (1353, 15393), (2199, 9471), (2583, 8063), (3157, 6597), (4059, 5131)]