28643085

素因数分解:

$3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{641}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 51154560

約数和(自身を除く): 22511475

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 331, 641, 993, 1655, 1923, 2979, 3205, 4965, 5769, 8937, 9615, 14895, 17307, 28845, 44685, 86535, 212171, 636513, 1060855, 1909539, 3182565, 5728617, 9547695, 28643085]

約数ペア:

[(1, 28643085), (3, 9547695), (5, 5728617), (9, 3182565), (15, 1909539), (27, 1060855), (45, 636513), (135, 212171), (331, 86535), (641, 44685), (993, 28845), (1655, 17307), (1923, 14895), (2979, 9615), (3205, 8937), (4965, 5769)]