28980153

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 44997120

約数和(自身を除く): 16016967

約数列:

[1, 3, 9, 27, 41, 47, 123, 141, 369, 423, 557, 1107, 1269, 1671, 1927, 5013, 5781, 15039, 17343, 22837, 26179, 52029, 68511, 78537, 205533, 235611, 616599, 706833, 1073339, 3220017, 9660051, 28980153]

約数ペア:

[(1, 28980153), (3, 9660051), (9, 3220017), (27, 1073339), (41, 706833), (47, 616599), (123, 235611), (141, 205533), (369, 78537), (423, 68511), (557, 52029), (1107, 26179), (1269, 22837), (1671, 17343), (1927, 15039), (5013, 5781)]