21375190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112501}}^1$

素因数の和:112527

約数の個数: 16

約数和(自身を含む): 40500720

約数和(自身を除く): 19125530

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112501, 225002, 562505, 1125010, 2137519, 4275038, 10687595, 21375190]

約数ペア:

[(1, 21375190), (2, 10687595), (5, 4275038), (10, 2137519), (19, 1125010), (38, 562505), (95, 225002), (190, 112501)]