20487798

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^1\times {\mathrm{7639}}^1$

素因数の和:7796

約数の個数: 24

約数和(自身を含む): 44694000

約数和(自身を除く): 24206202

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 447, 894, 1341, 2682, 7639, 15278, 22917, 45834, 68751, 137502, 1138211, 2276422, 3414633, 6829266, 10243899, 20487798]

約数ペア:

[(1, 20487798), (2, 10243899), (3, 6829266), (6, 3414633), (9, 2276422), (18, 1138211), (149, 137502), (298, 68751), (447, 45834), (894, 22917), (1341, 15278), (2682, 7639)]