538821

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 861120

約数和(自身を除く): 322299

約数列:

[1, 3, 9, 19, 23, 57, 69, 137, 171, 207, 411, 437, 1233, 1311, 2603, 3151, 3933, 7809, 9453, 23427, 28359, 59869, 179607, 538821]

約数ペア:

[(1, 538821), (3, 179607), (9, 59869), (19, 28359), (23, 23427), (57, 9453), (69, 7809), (137, 3933), (171, 3151), (207, 2603), (411, 1311), (437, 1233)]