16640838

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 37908000

約数和(自身を除く): 21267162

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 71, 87, 142, 174, 213, 261, 426, 449, 522, 639, 898, 1278, 1347, 2059, 2694, 4041, 4118, 6177, 8082, 12354, 13021, 18531, 26042, 31879, 37062, 39063, 63758, 78126, 95637, 117189, 191274, 234378, 286911, 573822, 924491, 1848982, 2773473, 5546946, 8320419, 16640838]

約数ペア:

[(1, 16640838), (2, 8320419), (3, 5546946), (6, 2773473), (9, 1848982), (18, 924491), (29, 573822), (58, 286911), (71, 234378), (87, 191274), (142, 117189), (174, 95637), (213, 78126), (261, 63758), (426, 39063), (449, 37062), (522, 31879), (639, 26042), (898, 18531), (1278, 13021), (1347, 12354), (2059, 8082), (2694, 6177), (4041, 4118)]