19969356

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:855

約数の個数: 72

約数和(自身を含む): 54295920

約数和(自身を除く): 34326564

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, 809, 1122, 1452, 1618, 2057, 2244, 2427, 3236, 4114, 4854, 6171, 8228, 8899, 9708, 12342, 13753, 17798, 24684, 26697, 27506, 35596, 41259, 53394, 55012, 82518, 97889, 106788, 151283, 165036, 195778, 293667, 302566, 391556, 453849, 587334, 605132, 907698, 1174668, 1664113, 1815396, 3328226, 4992339, 6656452, 9984678, 19969356]

約数ペア:

[(1, 19969356), (2, 9984678), (3, 6656452), (4, 4992339), (6, 3328226), (11, 1815396), (12, 1664113), (17, 1174668), (22, 907698), (33, 605132), (34, 587334), (44, 453849), (51, 391556), (66, 302566), (68, 293667), (102, 195778), (121, 165036), (132, 151283), (187, 106788), (204, 97889), (242, 82518), (363, 55012), (374, 53394), (484, 41259), (561, 35596), (726, 27506), (748, 26697), (809, 24684), (1122, 17798), (1452, 13753), (1618, 12342), (2057, 9708), (2244, 8899), (2427, 8228), (3236, 6171), (4114, 4854)]