253996857

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4157}}^1$

素因数の和:4270

約数の個数: 32

約数和(自身を含む): 393845760

約数和(自身を除く): 139848903

約数列:

[1, 3, 9, 27, 31, 73, 93, 219, 279, 657, 837, 1971, 2263, 4157, 6789, 12471, 20367, 37413, 61101, 112239, 128867, 303461, 386601, 910383, 1159803, 2731149, 3479409, 8193447, 9407291, 28221873, 84665619, 253996857]

約数ペア:

[(1, 253996857), (3, 84665619), (9, 28221873), (27, 9407291), (31, 8193447), (73, 3479409), (93, 2731149), (219, 1159803), (279, 910383), (657, 386601), (837, 303461), (1971, 128867), (2263, 112239), (4157, 61101), (6789, 37413), (12471, 20367)]