21445676

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{797}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 44375184

約数和(自身を除く): 22929508

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 797, 868, 961, 1594, 1922, 3188, 3844, 5579, 6727, 11158, 13454, 22316, 24707, 26908, 49414, 98828, 172949, 345898, 691796, 765917, 1531834, 3063668, 5361419, 10722838, 21445676]

約数ペア:

[(1, 21445676), (2, 10722838), (4, 5361419), (7, 3063668), (14, 1531834), (28, 765917), (31, 691796), (62, 345898), (124, 172949), (217, 98828), (434, 49414), (797, 26908), (868, 24707), (961, 22316), (1594, 13454), (1922, 11158), (3188, 6727), (3844, 5579)]