18218490549

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{9747721}}^1$

素因数の和:9747820

約数の個数: 16

約数和(自身を含む): 28073439360

約数和(自身を除く): 9854948811

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 9747721, 29243163, 68234047, 204702141, 867547169, 2602641507, 6072830183, 18218490549]

約数ペア:

[(1, 18218490549), (3, 6072830183), (7, 2602641507), (21, 867547169), (89, 204702141), (267, 68234047), (623, 29243163), (1869, 9747721)]