21192129

素因数分解:

$3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{937}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 35118720

約数和(自身を除く): 13926591

約数列:

[1, 3, 7, 9, 21, 63, 359, 937, 1077, 2513, 2811, 3231, 6559, 7539, 8433, 19677, 22617, 59031, 336383, 1009149, 2354681, 3027447, 7064043, 21192129]

約数ペア:

[(1, 21192129), (3, 7064043), (7, 3027447), (9, 2354681), (21, 1009149), (63, 336383), (359, 59031), (937, 22617), (1077, 19677), (2513, 8433), (2811, 7539), (3231, 6559)]