21926680

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1367}}^1$

素因数の和:1779

約数の個数: 32

約数和(自身を含む): 49494240

約数和(自身を除く): 27567560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1367, 1604, 2005, 2734, 3208, 4010, 5468, 6835, 8020, 10936, 13670, 16040, 27340, 54680, 548167, 1096334, 2192668, 2740835, 4385336, 5481670, 10963340, 21926680]

約数ペア:

[(1, 21926680), (2, 10963340), (4, 5481670), (5, 4385336), (8, 2740835), (10, 2192668), (20, 1096334), (40, 548167), (401, 54680), (802, 27340), (1367, 16040), (1604, 13670), (2005, 10936), (2734, 8020), (3208, 6835), (4010, 5468)]