28337733

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 42247296

約数和(自身を除く): 13909563

約数列:

[1, 3, 9, 61, 71, 183, 213, 549, 639, 727, 2181, 4331, 6543, 12993, 38979, 44347, 51617, 133041, 154851, 399123, 464553, 3148637, 9445911, 28337733]

約数ペア:

[(1, 28337733), (3, 9445911), (9, 3148637), (61, 464553), (71, 399123), (183, 154851), (213, 133041), (549, 51617), (639, 44347), (727, 38979), (2181, 12993), (4331, 6543)]