18666890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4139}}^1$

素因数の和:4198

約数の個数: 32

約数和(自身を含む): 37558080

約数和(自身を除く): 18891190

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4139, 4510, 8278, 20695, 41390, 45529, 91058, 169699, 227645, 339398, 455290, 848495, 1696990, 1866689, 3733378, 9333445, 18666890]

約数ペア:

[(1, 18666890), (2, 9333445), (5, 3733378), (10, 1866689), (11, 1696990), (22, 848495), (41, 455290), (55, 339398), (82, 227645), (110, 169699), (205, 91058), (410, 45529), (451, 41390), (902, 20695), (2255, 8278), (4139, 4510)]