21500655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130307}}^1$

素因数の和:130326

約数の個数: 16

約数和(自身を含む): 37528704

約数和(自身を除く): 16028049

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 130307, 390921, 651535, 1433377, 1954605, 4300131, 7166885, 21500655]

約数ペア:

[(1, 21500655), (3, 7166885), (5, 4300131), (11, 1954605), (15, 1433377), (33, 651535), (55, 390921), (165, 130307)]