21456530

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{887}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 18823150

約数列:

[1, 2, 5, 10, 41, 59, 82, 118, 205, 295, 410, 590, 887, 1774, 2419, 4435, 4838, 8870, 12095, 24190, 36367, 52333, 72734, 104666, 181835, 261665, 363670, 523330, 2145653, 4291306, 10728265, 21456530]

約数ペア:

[(1, 21456530), (2, 10728265), (5, 4291306), (10, 2145653), (41, 523330), (59, 363670), (82, 261665), (118, 181835), (205, 104666), (295, 72734), (410, 52333), (590, 36367), (887, 24190), (1774, 12095), (2419, 8870), (4435, 4838)]