20988318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5077}}^1$

素因数の和:5148

約数の個数: 32

約数和(自身を含む): 46067616

約数和(自身を除く): 25079298

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 689, 1378, 2067, 4134, 5077, 10154, 15231, 30462, 66001, 132002, 198003, 269081, 396006, 538162, 807243, 1614486, 3498053, 6996106, 10494159, 20988318]

約数ペア:

[(1, 20988318), (2, 10494159), (3, 6996106), (6, 3498053), (13, 1614486), (26, 807243), (39, 538162), (53, 396006), (78, 269081), (106, 198003), (159, 132002), (318, 66001), (689, 30462), (1378, 15231), (2067, 10154), (4134, 5077)]