21287786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{733}}^1\times {\mathrm{1117}}^1$

素因数の和:1865

約数の個数: 16

約数和(自身を含む): 34465704

約数和(自身を除く): 13177918

約数列:

[1, 2, 13, 26, 733, 1117, 1466, 2234, 9529, 14521, 19058, 29042, 818761, 1637522, 10643893, 21287786]

約数ペア:

[(1, 21287786), (2, 10643893), (13, 1637522), (26, 818761), (733, 29042), (1117, 19058), (1466, 14521), (2234, 9529)]