19764405

素因数分解:

$3^5\times 5^1\times {\mathrm{16267}}^1$

素因数の和:16287

約数の個数: 24

約数和(自身を含む): 35529312

約数和(自身を除く): 15764907

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16267, 48801, 81335, 146403, 244005, 439209, 732015, 1317627, 2196045, 3952881, 6588135, 19764405]

約数ペア:

[(1, 19764405), (3, 6588135), (5, 3952881), (9, 2196045), (15, 1317627), (27, 732015), (45, 439209), (81, 244005), (135, 146403), (243, 81335), (405, 48801), (1215, 16267)]