18803870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2087}}^1$

素因数の和:2164

約数の個数: 32

約数和(自身を含む): 36531648

約数和(自身を除く): 17727778

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2087, 4174, 4505, 9010, 10435, 20870, 35479, 70958, 110611, 177395, 221222, 354790, 553055, 1106110, 1880387, 3760774, 9401935, 18803870]

約数ペア:

[(1, 18803870), (2, 9401935), (5, 3760774), (10, 1880387), (17, 1106110), (34, 553055), (53, 354790), (85, 221222), (106, 177395), (170, 110611), (265, 70958), (530, 35479), (901, 20870), (1802, 10435), (2087, 9010), (4174, 4505)]