20926395

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2143}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 42811392

約数和(自身を除く): 21884997

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2143, 3255, 6429, 9765, 10715, 15001, 19287, 32145, 45003, 66433, 75005, 96435, 135009, 199299, 225015, 332165, 465031, 597897, 675045, 996495, 1395093, 2325155, 2989485, 4185279, 6975465, 20926395]

約数ペア:

[(1, 20926395), (3, 6975465), (5, 4185279), (7, 2989485), (9, 2325155), (15, 1395093), (21, 996495), (31, 675045), (35, 597897), (45, 465031), (63, 332165), (93, 225015), (105, 199299), (155, 135009), (217, 96435), (279, 75005), (315, 66433), (465, 45003), (651, 32145), (1085, 19287), (1395, 15001), (1953, 10715), (2143, 9765), (3255, 6429)]