21090175557

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{512507}}^1$

素因数の和:512593

約数の個数: 32

約数和(自身を含む): 32472506880

約数和(自身を除く): 11382331323

約数列:

[1, 3, 11, 29, 33, 43, 87, 129, 319, 473, 957, 1247, 1419, 3741, 13717, 41151, 512507, 1537521, 5637577, 14862703, 16912731, 22037801, 44588109, 66113403, 163489733, 242415811, 490469199, 639096229, 727247433, 1917288687, 7030058519, 21090175557]

約数ペア:

[(1, 21090175557), (3, 7030058519), (11, 1917288687), (29, 727247433), (33, 639096229), (43, 490469199), (87, 242415811), (129, 163489733), (319, 66113403), (473, 44588109), (957, 22037801), (1247, 16912731), (1419, 14862703), (3741, 5637577), (13717, 1537521), (41151, 512507)]