208620783

素因数分解:

$3^2\times 7^2\times {\mathrm{367}}^1\times {\mathrm{1289}}^1$

素因数の和:1676

約数の個数: 36

約数和(自身を含む): 351767520

約数和(自身を除く): 143146737

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 367, 441, 1101, 1289, 2569, 3303, 3867, 7707, 9023, 11601, 17983, 23121, 27069, 53949, 63161, 81207, 161847, 189483, 473063, 568449, 1419189, 3311441, 4257567, 9934323, 23180087, 29802969, 69540261, 208620783]

約数ペア:

[(1, 208620783), (3, 69540261), (7, 29802969), (9, 23180087), (21, 9934323), (49, 4257567), (63, 3311441), (147, 1419189), (367, 568449), (441, 473063), (1101, 189483), (1289, 161847), (2569, 81207), (3303, 63161), (3867, 53949), (7707, 27069), (9023, 23121), (11601, 17983)]