21164229

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 31917600

約数和(自身を除く): 10753371

約数列:

[1, 3, 9, 29, 87, 131, 261, 393, 619, 1179, 1857, 3799, 5571, 11397, 17951, 34191, 53853, 81089, 161559, 243267, 729801, 2351581, 7054743, 21164229]

約数ペア:

[(1, 21164229), (3, 7054743), (9, 2351581), (29, 729801), (87, 243267), (131, 161559), (261, 81089), (393, 53853), (619, 34191), (1179, 17951), (1857, 11397), (3799, 5571)]