20809944

素因数分解:

$2^3\times 3^2\times {\mathrm{389}}^1\times {\mathrm{743}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 56581200

約数和(自身を除く): 35771256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 389, 743, 778, 1167, 1486, 1556, 2229, 2334, 2972, 3112, 3501, 4458, 4668, 5944, 6687, 7002, 8916, 9336, 13374, 14004, 17832, 26748, 28008, 53496, 289027, 578054, 867081, 1156108, 1734162, 2312216, 2601243, 3468324, 5202486, 6936648, 10404972, 20809944]

約数ペア:

[(1, 20809944), (2, 10404972), (3, 6936648), (4, 5202486), (6, 3468324), (8, 2601243), (9, 2312216), (12, 1734162), (18, 1156108), (24, 867081), (36, 578054), (72, 289027), (389, 53496), (743, 28008), (778, 26748), (1167, 17832), (1486, 14004), (1556, 13374), (2229, 9336), (2334, 8916), (2972, 7002), (3112, 6687), (3501, 5944), (4458, 4668)]