28218405

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{23813}}^1$

素因数の和:23900

約数の個数: 16

約数和(自身を含む): 45722880

約数和(自身を除く): 17504475

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 23813, 71439, 119065, 357195, 1881227, 5643681, 9406135, 28218405]

約数ペア:

[(1, 28218405), (3, 9406135), (5, 5643681), (15, 1881227), (79, 357195), (237, 119065), (395, 71439), (1185, 23813)]