21666786

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 44343936

約数和(自身を除く): 22677150

約数列:

[1, 2, 3, 6, 71, 142, 181, 213, 281, 362, 426, 543, 562, 843, 1086, 1686, 12851, 19951, 25702, 38553, 39902, 50861, 59853, 77106, 101722, 119706, 152583, 305166, 3611131, 7222262, 10833393, 21666786]

約数ペア:

[(1, 21666786), (2, 10833393), (3, 7222262), (6, 3611131), (71, 305166), (142, 152583), (181, 119706), (213, 101722), (281, 77106), (362, 59853), (426, 50861), (543, 39902), (562, 38553), (843, 25702), (1086, 19951), (1686, 12851)]