21075615

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42577}}^1$

素因数の和:42599

約数の個数: 24

約数和(自身を含む): 39853008

約数和(自身を除く): 18777393

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42577, 127731, 212885, 383193, 468347, 638655, 1405041, 1915965, 2341735, 4215123, 7025205, 21075615]

約数ペア:

[(1, 21075615), (3, 7025205), (5, 4215123), (9, 2341735), (11, 1915965), (15, 1405041), (33, 638655), (45, 468347), (55, 383193), (99, 212885), (165, 127731), (495, 42577)]