21402260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97283}}^1$

素因数の和:97303

約数の個数: 24

約数和(自身を含む): 49031136

約数和(自身を除く): 27628876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97283, 194566, 389132, 486415, 972830, 1070113, 1945660, 2140226, 4280452, 5350565, 10701130, 21402260]

約数ペア:

[(1, 21402260), (2, 10701130), (4, 5350565), (5, 4280452), (10, 2140226), (11, 1945660), (20, 1070113), (22, 972830), (44, 486415), (55, 389132), (110, 194566), (220, 97283)]