21182876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1277}}^1$

素因数の和:1334

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 23904964

約数列:

[1, 2, 4, 11, 13, 22, 26, 29, 44, 52, 58, 116, 143, 286, 319, 377, 572, 638, 754, 1276, 1277, 1508, 2554, 4147, 5108, 8294, 14047, 16588, 16601, 28094, 33202, 37033, 56188, 66404, 74066, 148132, 182611, 365222, 407363, 481429, 730444, 814726, 962858, 1629452, 1925716, 5295719, 10591438, 21182876]

約数ペア:

[(1, 21182876), (2, 10591438), (4, 5295719), (11, 1925716), (13, 1629452), (22, 962858), (26, 814726), (29, 730444), (44, 481429), (52, 407363), (58, 365222), (116, 182611), (143, 148132), (286, 74066), (319, 66404), (377, 56188), (572, 37033), (638, 33202), (754, 28094), (1276, 16601), (1277, 16588), (1508, 14047), (2554, 8294), (4147, 5108)]