18880101

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{18899}}^1$

素因数の和:18945

約数の個数: 16

約数和(自身を含む): 28728000

約数和(自身を除く): 9847899

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 18899, 56697, 170091, 510273, 699263, 2097789, 6293367, 18880101]

約数ペア:

[(1, 18880101), (3, 6293367), (9, 2097789), (27, 699263), (37, 510273), (111, 170091), (333, 56697), (999, 18899)]