163655721

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2473}}^1$

素因数の和:2547

約数の個数: 40

約数和(自身を含む): 263431520

約数和(自身を除く): 99775799

約数列:

[1, 3, 9, 19, 27, 43, 57, 81, 129, 171, 387, 513, 817, 1161, 1539, 2451, 2473, 3483, 7353, 7419, 22059, 22257, 46987, 66177, 66771, 106339, 140961, 200313, 319017, 422883, 957051, 1268649, 2020441, 2871153, 3805947, 6061323, 8613459, 18183969, 54551907, 163655721]

約数ペア:

[(1, 163655721), (3, 54551907), (9, 18183969), (19, 8613459), (27, 6061323), (43, 3805947), (57, 2871153), (81, 2020441), (129, 1268649), (171, 957051), (387, 422883), (513, 319017), (817, 200313), (1161, 140961), (1539, 106339), (2451, 66771), (2473, 66177), (3483, 46987), (7353, 22257), (7419, 22059)]