21227356

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{641}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 39475296

約数和(自身を除く): 18247940

約数列:

[1, 2, 4, 17, 34, 68, 487, 641, 974, 1282, 1948, 2564, 8279, 10897, 16558, 21794, 33116, 43588, 312167, 624334, 1248668, 5306839, 10613678, 21227356]

約数ペア:

[(1, 21227356), (2, 10613678), (4, 5306839), (17, 1248668), (34, 624334), (68, 312167), (487, 43588), (641, 33116), (974, 21794), (1282, 16558), (1948, 10897), (2564, 8279)]