128212497

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 227737600

約数和(自身を除く): 99525103

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 79, 93, 189, 217, 237, 277, 279, 553, 651, 711, 831, 837, 1659, 1939, 1953, 2133, 2449, 2493, 4977, 5817, 5859, 7347, 7479, 8587, 14931, 17143, 17451, 21883, 22041, 25761, 51429, 52353, 60109, 65649, 66123, 77283, 153181, 154287, 180327, 196947, 231849, 459543, 462861, 540981, 590841, 678373, 1378629, 1622943, 2035119, 4135887, 4748611, 6105357, 14245833, 18316071, 42737499, 128212497]

約数ペア:

[(1, 128212497), (3, 42737499), (7, 18316071), (9, 14245833), (21, 6105357), (27, 4748611), (31, 4135887), (63, 2035119), (79, 1622943), (93, 1378629), (189, 678373), (217, 590841), (237, 540981), (277, 462861), (279, 459543), (553, 231849), (651, 196947), (711, 180327), (831, 154287), (837, 153181), (1659, 77283), (1939, 66123), (1953, 65649), (2133, 60109), (2449, 52353), (2493, 51429), (4977, 25761), (5817, 22041), (5859, 21883), (7347, 17451), (7479, 17143), (8587, 14931)]