388317069

素因数分解:

$3^2\times 7^1\times {\mathrm{887}}^1\times {\mathrm{6949}}^1$

素因数の和:7849

約数の個数: 24

約数和(自身を含む): 641846400

約数和(自身を除く): 253529331

約数列:

[1, 3, 7, 9, 21, 63, 887, 2661, 6209, 6949, 7983, 18627, 20847, 48643, 55881, 62541, 145929, 437787, 6163763, 18491289, 43146341, 55473867, 129439023, 388317069]

約数ペア:

[(1, 388317069), (3, 129439023), (7, 55473867), (9, 43146341), (21, 18491289), (63, 6163763), (887, 437787), (2661, 145929), (6209, 62541), (6949, 55881), (7983, 48643), (18627, 20847)]