20925972

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2729}}^1$

素因数の和:2813

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 34110828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2729, 3834, 5458, 7668, 8187, 10916, 16374, 24561, 32748, 49122, 73683, 98244, 147366, 193759, 294732, 387518, 581277, 775036, 1162554, 1743831, 2325108, 3487662, 5231493, 6975324, 10462986, 20925972]

約数ペア:

[(1, 20925972), (2, 10462986), (3, 6975324), (4, 5231493), (6, 3487662), (9, 2325108), (12, 1743831), (18, 1162554), (27, 775036), (36, 581277), (54, 387518), (71, 294732), (108, 193759), (142, 147366), (213, 98244), (284, 73683), (426, 49122), (639, 32748), (852, 24561), (1278, 16374), (1917, 10916), (2556, 8187), (2729, 7668), (3834, 5458)]