18999715

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{28571}}^1$

素因数の和:28602

約数の個数: 16

約数和(自身を含む): 27429120

約数和(自身を除く): 8429405

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 28571, 142855, 199997, 542849, 999985, 2714245, 3799943, 18999715]

約数ペア:

[(1, 18999715), (5, 3799943), (7, 2714245), (19, 999985), (35, 542849), (95, 199997), (133, 142855), (665, 28571)]