18981996

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:815

約数の個数: 72

約数和(自身を含む): 51614640

約数和(自身を除く): 32632644

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 102, 121, 132, 187, 204, 242, 363, 374, 484, 561, 726, 748, 769, 1122, 1452, 1538, 2057, 2244, 2307, 3076, 4114, 4614, 6171, 8228, 8459, 9228, 12342, 13073, 16918, 24684, 25377, 26146, 33836, 39219, 50754, 52292, 78438, 93049, 101508, 143803, 156876, 186098, 279147, 287606, 372196, 431409, 558294, 575212, 862818, 1116588, 1581833, 1725636, 3163666, 4745499, 6327332, 9490998, 18981996]

約数ペア:

[(1, 18981996), (2, 9490998), (3, 6327332), (4, 4745499), (6, 3163666), (11, 1725636), (12, 1581833), (17, 1116588), (22, 862818), (33, 575212), (34, 558294), (44, 431409), (51, 372196), (66, 287606), (68, 279147), (102, 186098), (121, 156876), (132, 143803), (187, 101508), (204, 93049), (242, 78438), (363, 52292), (374, 50754), (484, 39219), (561, 33836), (726, 26146), (748, 25377), (769, 24684), (1122, 16918), (1452, 13073), (1538, 12342), (2057, 9228), (2244, 8459), (2307, 8228), (3076, 6171), (4114, 4614)]