21219666

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1669}}^1$

素因数の和:1850

約数の個数: 32

約数和(自身を含む): 46011840

約数和(自身を除く): 24792174

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 163, 326, 489, 978, 1669, 2119, 3338, 4238, 5007, 6357, 10014, 12714, 21697, 43394, 65091, 130182, 272047, 544094, 816141, 1632282, 3536611, 7073222, 10609833, 21219666]

約数ペア:

[(1, 21219666), (2, 10609833), (3, 7073222), (6, 3536611), (13, 1632282), (26, 816141), (39, 544094), (78, 272047), (163, 130182), (326, 65091), (489, 43394), (978, 21697), (1669, 12714), (2119, 10014), (3338, 6357), (4238, 5007)]