31971890

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{9161}}^1$

素因数の和:9517

約数の個数: 16

約数和(自身を含む): 57720600

約数和(自身を除く): 25748710

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 9161, 18322, 45805, 91610, 3197189, 6394378, 15985945, 31971890]

約数ペア:

[(1, 31971890), (2, 15985945), (5, 6394378), (10, 3197189), (349, 91610), (698, 45805), (1745, 18322), (3490, 9161)]