21008049

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{569}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 29038080

約数和(自身を除く): 8030031

約数列:

[1, 3, 31, 93, 397, 569, 1191, 1707, 12307, 17639, 36921, 52917, 225893, 677679, 7002683, 21008049]

約数ペア:

[(1, 21008049), (3, 7002683), (31, 677679), (93, 225893), (397, 52917), (569, 36921), (1191, 17639), (1707, 12307)]