28658091

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 49904640

約数和(自身を除く): 21246549

約数列:

[1, 3, 7, 11, 21, 33, 37, 49, 77, 111, 147, 231, 259, 407, 479, 539, 777, 1221, 1437, 1617, 1813, 2849, 3353, 5269, 5439, 8547, 10059, 15807, 17723, 19943, 23471, 36883, 53169, 59829, 70413, 110649, 124061, 194953, 258181, 372183, 584859, 774543, 868427, 1364671, 2605281, 4094013, 9552697, 28658091]

約数ペア:

[(1, 28658091), (3, 9552697), (7, 4094013), (11, 2605281), (21, 1364671), (33, 868427), (37, 774543), (49, 584859), (77, 372183), (111, 258181), (147, 194953), (231, 124061), (259, 110649), (407, 70413), (479, 59829), (539, 53169), (777, 36883), (1221, 23471), (1437, 19943), (1617, 17723), (1813, 15807), (2849, 10059), (3353, 8547), (5269, 5439)]