21689085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131449}}^1$

素因数の和:131468

約数の個数: 16

約数和(自身を含む): 37857600

約数和(自身を除く): 16168515

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131449, 394347, 657245, 1445939, 1971735, 4337817, 7229695, 21689085]

約数ペア:

[(1, 21689085), (3, 7229695), (5, 4337817), (11, 1971735), (15, 1445939), (33, 657245), (55, 394347), (165, 131449)]