217356939

素因数分解:

$3^5\times {\mathrm{137}}^1\times {\mathrm{6529}}^1$

素因数の和:6681

約数の個数: 24

約数和(自身を含む): 328014960

約数和(自身を除く): 110658021

約数列:

[1, 3, 9, 27, 81, 137, 243, 411, 1233, 3699, 6529, 11097, 19587, 33291, 58761, 176283, 528849, 894473, 1586547, 2683419, 8050257, 24150771, 72452313, 217356939]

約数ペア:

[(1, 217356939), (3, 72452313), (9, 24150771), (27, 8050257), (81, 2683419), (137, 1586547), (243, 894473), (411, 528849), (1233, 176283), (3699, 58761), (6529, 33291), (11097, 19587)]