20019405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5153}}^1$

素因数の和:5205

約数の個数: 32

約数和(自身を含む): 37603584

約数和(自身を除く): 17584179

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5153, 15459, 25765, 36071, 77295, 108213, 180355, 190661, 541065, 571983, 953305, 1334627, 2859915, 4003881, 6673135, 20019405]

約数ペア:

[(1, 20019405), (3, 6673135), (5, 4003881), (7, 2859915), (15, 1334627), (21, 953305), (35, 571983), (37, 541065), (105, 190661), (111, 180355), (185, 108213), (259, 77295), (555, 36071), (777, 25765), (1295, 15459), (3885, 5153)]