193256721

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{22391}}^1$

素因数の和:22541

約数の個数: 24

約数和(自身を含む): 321369984

約数和(自身を除く): 128113263

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2877, 8631, 22391, 67173, 156737, 201519, 470211, 1410633, 3067567, 9202701, 21472969, 27608103, 64418907, 193256721]

約数ペア:

[(1, 193256721), (3, 64418907), (7, 27608103), (9, 21472969), (21, 9202701), (63, 3067567), (137, 1410633), (411, 470211), (959, 201519), (1233, 156737), (2877, 67173), (8631, 22391)]