20080918

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:541

約数の個数: 36

約数和(自身を含む): 35924364

約数和(自身を除く): 15843446

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 169, 242, 286, 338, 491, 982, 1573, 1859, 3146, 3718, 5401, 6383, 10802, 12766, 20449, 40898, 59411, 70213, 82979, 118822, 140426, 165958, 772343, 912769, 1544686, 1825538, 10040459, 20080918]

約数ペア:

[(1, 20080918), (2, 10040459), (11, 1825538), (13, 1544686), (22, 912769), (26, 772343), (121, 165958), (143, 140426), (169, 118822), (242, 82979), (286, 70213), (338, 59411), (491, 40898), (982, 20449), (1573, 12766), (1859, 10802), (3146, 6383), (3718, 5401)]