21813363

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1044

約数の個数: 48

約数和(自身を含む): 39233376

約数和(自身を除く): 17420013

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 99, 117, 143, 153, 187, 221, 429, 561, 663, 997, 1287, 1683, 1989, 2431, 2991, 7293, 8973, 10967, 12961, 16949, 21879, 32901, 38883, 50847, 98703, 116649, 142571, 152541, 186439, 220337, 427713, 559317, 661011, 1283139, 1677951, 1983033, 2423707, 7271121, 21813363]

約数ペア:

[(1, 21813363), (3, 7271121), (9, 2423707), (11, 1983033), (13, 1677951), (17, 1283139), (33, 661011), (39, 559317), (51, 427713), (99, 220337), (117, 186439), (143, 152541), (153, 142571), (187, 116649), (221, 98703), (429, 50847), (561, 38883), (663, 32901), (997, 21879), (1287, 16949), (1683, 12961), (1989, 10967), (2431, 8973), (2991, 7293)]