21437225090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69152339}}^1$

素因数の和:69152377

約数の個数: 16

約数和(自身を含む): 39831747840

約数和(自身を除く): 18394522750

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 69152339, 138304678, 345761695, 691523390, 2143722509, 4287445018, 10718612545, 21437225090]

約数ペア:

[(1, 21437225090), (2, 10718612545), (5, 4287445018), (10, 2143722509), (31, 691523390), (62, 345761695), (155, 138304678), (310, 69152339)]