81973566

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^2\times {\mathrm{821}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 186725520

約数和(自身を除く): 104751954

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 821, 1161, 1642, 1849, 2322, 2463, 3698, 4926, 5547, 7389, 11094, 14778, 16641, 22167, 33282, 35303, 44334, 49923, 70606, 99846, 105909, 211818, 317727, 635454, 953181, 1518029, 1906362, 3036058, 4554087, 9108174, 13662261, 27324522, 40986783, 81973566]

約数ペア:

[(1, 81973566), (2, 40986783), (3, 27324522), (6, 13662261), (9, 9108174), (18, 4554087), (27, 3036058), (43, 1906362), (54, 1518029), (86, 953181), (129, 635454), (258, 317727), (387, 211818), (774, 105909), (821, 99846), (1161, 70606), (1642, 49923), (1849, 44334), (2322, 35303), (2463, 33282), (3698, 22167), (4926, 16641), (5547, 14778), (7389, 11094)]