20059991903

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{12841}}^1$

素因数の和:13215

約数の個数: 32

約数和(自身を含む): 24774991872

約数和(自身を除く): 4714999969

約数列:

[1, 7, 23, 31, 161, 217, 313, 713, 2191, 4991, 7199, 9703, 12841, 50393, 67921, 89887, 223169, 295343, 398071, 1562183, 2067401, 2786497, 4019233, 9155633, 28134631, 64089431, 92442359, 124596223, 647096513, 872173561, 2865713129, 20059991903]

約数ペア:

[(1, 20059991903), (7, 2865713129), (23, 872173561), (31, 647096513), (161, 124596223), (217, 92442359), (313, 64089431), (713, 28134631), (2191, 9155633), (4991, 4019233), (7199, 2786497), (9703, 2067401), (12841, 1562183), (50393, 398071), (67921, 295343), (89887, 223169)]