212639085

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109891}}^1$

素因数の和:109945

約数の個数: 24

約数和(自身を含む): 377149344

約数和(自身を除く): 164510259

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 109891, 329673, 549455, 989019, 1648365, 4725313, 4945095, 14175939, 23626565, 42527817, 70879695, 212639085]

約数ペア:

[(1, 212639085), (3, 70879695), (5, 42527817), (9, 23626565), (15, 14175939), (43, 4945095), (45, 4725313), (129, 1648365), (215, 989019), (387, 549455), (645, 329673), (1935, 109891)]