407029779

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{386543}}^1$

素因数の和:386568

約数の個数: 20

約数和(自身を含む): 654805536

約数和(自身を除く): 247775757

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 386543, 1159629, 3478887, 5025059, 10436661, 15075177, 31309983, 45225531, 135676593, 407029779]

約数ペア:

[(1, 407029779), (3, 135676593), (9, 45225531), (13, 31309983), (27, 15075177), (39, 10436661), (81, 5025059), (117, 3478887), (351, 1159629), (1053, 386543)]