21549940

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2843}}^1$

素因数の和:3231

約数の個数: 24

約数和(自身を含む): 45390240

約数和(自身を除く): 23840300

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2843, 3790, 5686, 7580, 11372, 14215, 28430, 56860, 1077497, 2154994, 4309988, 5387485, 10774970, 21549940]

約数ペア:

[(1, 21549940), (2, 10774970), (4, 5387485), (5, 4309988), (10, 2154994), (20, 1077497), (379, 56860), (758, 28430), (1516, 14215), (1895, 11372), (2843, 7580), (3790, 5686)]