19081990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{112247}}^1$

素因数の和:112271

約数の個数: 16

約数和(自身を含む): 36368352

約数和(自身を除く): 17286362

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 112247, 224494, 561235, 1122470, 1908199, 3816398, 9540995, 19081990]

約数ペア:

[(1, 19081990), (2, 9540995), (5, 3816398), (10, 1908199), (17, 1122470), (34, 561235), (85, 224494), (170, 112247)]