1987997011

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{3671}}^1$

素因数の和:4243

約数の個数: 32

約数和(自身を含む): 2674861056

約数和(自身を除く): 686864045

約数列:

[1, 7, 11, 13, 77, 91, 143, 541, 1001, 3671, 3787, 5951, 7033, 25697, 40381, 41657, 47723, 49231, 77363, 282667, 334061, 524953, 541541, 1986011, 3674671, 13902077, 21846121, 25818143, 152922847, 180727001, 283999573, 1987997011]

約数ペア:

[(1, 1987997011), (7, 283999573), (11, 180727001), (13, 152922847), (77, 25818143), (91, 21846121), (143, 13902077), (541, 3674671), (1001, 1986011), (3671, 541541), (3787, 524953), (5951, 334061), (7033, 282667), (25697, 77363), (40381, 49231), (41657, 47723)]