215540241

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6247}}^1$

素因数の和:6341

約数の個数: 32

約数和(自身を含む): 345489408

約数和(自身を除く): 129949167

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 651, 1113, 1643, 4929, 6247, 11501, 18741, 34503, 43729, 131187, 193657, 331091, 580971, 993273, 1355599, 2317637, 4066797, 6952911, 10263821, 30791463, 71846747, 215540241]

約数ペア:

[(1, 215540241), (3, 71846747), (7, 30791463), (21, 10263821), (31, 6952911), (53, 4066797), (93, 2317637), (159, 1355599), (217, 993273), (371, 580971), (651, 331091), (1113, 193657), (1643, 131187), (4929, 43729), (6247, 34503), (11501, 18741)]