128970009

素因数分解:

$3^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1467

約数の個数: 48

約数和(自身を含む): 225555840

約数和(自身を除く): 96585831

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 147, 189, 213, 441, 497, 639, 1323, 1373, 1491, 1917, 3479, 4119, 4473, 9611, 10437, 12357, 13419, 28833, 31311, 37071, 67277, 86499, 93933, 97483, 201831, 259497, 292449, 605493, 682381, 877347, 1816479, 2047143, 2632041, 4776667, 6141429, 14330001, 18424287, 42990003, 128970009]

約数ペア:

[(1, 128970009), (3, 42990003), (7, 18424287), (9, 14330001), (21, 6141429), (27, 4776667), (49, 2632041), (63, 2047143), (71, 1816479), (147, 877347), (189, 682381), (213, 605493), (441, 292449), (497, 259497), (639, 201831), (1323, 97483), (1373, 93933), (1491, 86499), (1917, 67277), (3479, 37071), (4119, 31311), (4473, 28833), (9611, 13419), (10437, 12357)]