21643734

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1657}}^1$

素因数の和:1980

約数の個数: 32

約数和(自身を含む): 49660416

約数和(自身を除く): 28016682

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 311, 622, 933, 1657, 1866, 2177, 3314, 4354, 4971, 6531, 9942, 11599, 13062, 23198, 34797, 69594, 515327, 1030654, 1545981, 3091962, 3607289, 7214578, 10821867, 21643734]

約数ペア:

[(1, 21643734), (2, 10821867), (3, 7214578), (6, 3607289), (7, 3091962), (14, 1545981), (21, 1030654), (42, 515327), (311, 69594), (622, 34797), (933, 23198), (1657, 13062), (1866, 11599), (2177, 9942), (3314, 6531), (4354, 4971)]