243979281

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{42557}}^1$

素因数の和:42590

約数の個数: 36

約数和(自身を含む): 441496692

約数和(自身を除く): 197517411

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 5733, 42557, 127671, 297899, 383013, 553241, 893697, 1659723, 2085293, 2681091, 3872687, 4979169, 6255879, 11618061, 18767637, 27108809, 34854183, 81326427, 243979281]

約数ペア:

[(1, 243979281), (3, 81326427), (7, 34854183), (9, 27108809), (13, 18767637), (21, 11618061), (39, 6255879), (49, 4979169), (63, 3872687), (91, 2681091), (117, 2085293), (147, 1659723), (273, 893697), (441, 553241), (637, 383013), (819, 297899), (1911, 127671), (5733, 42557)]