20151729

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13249}}^1$

素因数の和:13281

約数の個数: 18

約数和(自身を含む): 31521750

約数和(自身を除く): 11370021

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13249, 39747, 119241, 172237, 516711, 1550133, 2239081, 6717243, 20151729]

約数ペア:

[(1, 20151729), (3, 6717243), (9, 2239081), (13, 1550133), (39, 516711), (117, 172237), (169, 119241), (507, 39747), (1521, 13249)]