21266454

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28085226

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 41, 58, 66, 82, 87, 123, 174, 246, 271, 319, 451, 542, 638, 813, 902, 957, 1189, 1353, 1626, 1914, 2378, 2706, 2981, 3567, 5962, 7134, 7859, 8943, 11111, 13079, 15718, 17886, 22222, 23577, 26158, 33333, 39237, 47154, 66666, 78474, 86449, 122221, 172898, 244442, 259347, 322219, 366663, 518694, 644438, 733326, 966657, 1933314, 3544409, 7088818, 10633227, 21266454]

約数ペア:

[(1, 21266454), (2, 10633227), (3, 7088818), (6, 3544409), (11, 1933314), (22, 966657), (29, 733326), (33, 644438), (41, 518694), (58, 366663), (66, 322219), (82, 259347), (87, 244442), (123, 172898), (174, 122221), (246, 86449), (271, 78474), (319, 66666), (451, 47154), (542, 39237), (638, 33333), (813, 26158), (902, 23577), (957, 22222), (1189, 17886), (1353, 15718), (1626, 13079), (1914, 11111), (2378, 8943), (2706, 7859), (2981, 7134), (3567, 5962)]