21370833

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1553}}^1$

素因数の和:1709

約数の個数: 24

約数和(自身を含む): 33939360

約数和(自身を除く): 12568527

約数列:

[1, 3, 9, 11, 33, 99, 139, 417, 1251, 1529, 1553, 4587, 4659, 13761, 13977, 17083, 51249, 153747, 215867, 647601, 1942803, 2374537, 7123611, 21370833]

約数ペア:

[(1, 21370833), (3, 7123611), (9, 2374537), (11, 1942803), (33, 647601), (99, 215867), (139, 153747), (417, 51249), (1251, 17083), (1529, 13977), (1553, 13761), (4587, 4659)]