21905533

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 24393600

約数和(自身を除く): 2488067

約数列:

[1, 13, 43, 149, 263, 559, 1937, 3419, 6407, 11309, 39187, 83291, 147017, 509431, 1685041, 21905533]

約数ペア:

[(1, 21905533), (13, 1685041), (43, 509431), (149, 147017), (263, 83291), (559, 39187), (1937, 11309), (3419, 6407)]