20642170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{108643}}^1$

素因数の和:108669

約数の個数: 16

約数和(自身を含む): 39111840

約数和(自身を除く): 18469670

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 108643, 217286, 543215, 1086430, 2064217, 4128434, 10321085, 20642170]

約数ペア:

[(1, 20642170), (2, 10321085), (5, 4128434), (10, 2064217), (19, 1086430), (38, 543215), (95, 217286), (190, 108643)]