21000401305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{843559}}^1$

素因数の和:843960

約数の個数: 16

約数和(自身を含む): 27209871360

約数和(自身を除く): 6209470055

約数列:

[1, 5, 13, 65, 383, 1915, 4979, 24895, 843559, 4217795, 10966267, 54831335, 323083097, 1615415485, 4200080261, 21000401305]

約数ペア:

[(1, 21000401305), (5, 4200080261), (13, 1615415485), (65, 323083097), (383, 54831335), (1915, 10966267), (4979, 4217795), (24895, 843559)]