212492781

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{167449}}^1$

素因数の和:167505

約数の個数: 16

約数和(自身を含む): 321504000

約数和(自身を除く): 109011219

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 167449, 502347, 1507041, 4521123, 7870103, 23610309, 70830927, 212492781]

約数ペア:

[(1, 212492781), (3, 70830927), (9, 23610309), (27, 7870103), (47, 4521123), (141, 1507041), (423, 502347), (1269, 167449)]