28393281

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8837}}^1$

素因数の和:8870

約数の個数: 32

約数和(自身を含む): 50906880

約数和(自身を除く): 22513599

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 8837, 26511, 61859, 79533, 150229, 185577, 238599, 450687, 556731, 1051603, 1352061, 1670193, 3154809, 4056183, 9464427, 28393281]

約数ペア:

[(1, 28393281), (3, 9464427), (7, 4056183), (9, 3154809), (17, 1670193), (21, 1352061), (27, 1051603), (51, 556731), (63, 450687), (119, 238599), (153, 185577), (189, 150229), (357, 79533), (459, 61859), (1071, 26511), (3213, 8837)]