21791900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16763}}^1$

素因数の和:16790

約数の個数: 36

約数和(自身を含む): 50929032

約数和(自身を除く): 29137132

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16763, 33526, 67052, 83815, 167630, 217919, 335260, 419075, 435838, 838150, 871676, 1089595, 1676300, 2179190, 4358380, 5447975, 10895950, 21791900]

約数ペア:

[(1, 21791900), (2, 10895950), (4, 5447975), (5, 4358380), (10, 2179190), (13, 1676300), (20, 1089595), (25, 871676), (26, 838150), (50, 435838), (52, 419075), (65, 335260), (100, 217919), (130, 167630), (260, 83815), (325, 67052), (650, 33526), (1300, 16763)]