2171540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{15511}}^1$

素因数の和:15527

約数の個数: 24

約数和(自身を含む): 5212032

約数和(自身を除く): 3040492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 15511, 31022, 62044, 77555, 108577, 155110, 217154, 310220, 434308, 542885, 1085770, 2171540]

約数ペア:

[(1, 2171540), (2, 1085770), (4, 542885), (5, 434308), (7, 310220), (10, 217154), (14, 155110), (20, 108577), (28, 77555), (35, 62044), (70, 31022), (140, 15511)]