28923111

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 51101440

約数和(自身を除く): 22178329

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 73, 133, 171, 219, 331, 399, 511, 657, 993, 1197, 1387, 1533, 2317, 2979, 4161, 4599, 6289, 6951, 9709, 12483, 18867, 20853, 24163, 29127, 44023, 56601, 72489, 87381, 132069, 169141, 217467, 396207, 459097, 507423, 1377291, 1522269, 3213679, 4131873, 9641037, 28923111]

約数ペア:

[(1, 28923111), (3, 9641037), (7, 4131873), (9, 3213679), (19, 1522269), (21, 1377291), (57, 507423), (63, 459097), (73, 396207), (133, 217467), (171, 169141), (219, 132069), (331, 87381), (399, 72489), (511, 56601), (657, 44023), (993, 29127), (1197, 24163), (1387, 20853), (1533, 18867), (2317, 12483), (2979, 9709), (4161, 6951), (4599, 6289)]