21811480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18803}}^1$

素因数の和:18843

約数の個数: 32

約数和(自身を含む): 50770800

約数和(自身を除く): 28959320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18803, 37606, 75212, 94015, 150424, 188030, 376060, 545287, 752120, 1090574, 2181148, 2726435, 4362296, 5452870, 10905740, 21811480]

約数ペア:

[(1, 21811480), (2, 10905740), (4, 5452870), (5, 4362296), (8, 2726435), (10, 2181148), (20, 1090574), (29, 752120), (40, 545287), (58, 376060), (116, 188030), (145, 150424), (232, 94015), (290, 75212), (580, 37606), (1160, 18803)]