21112029

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 32976000

約数和(自身を除く): 11863971

約数列:

[1, 3, 9, 27, 29, 59, 87, 177, 261, 457, 531, 783, 1371, 1593, 1711, 4113, 5133, 12339, 13253, 15399, 26963, 39759, 46197, 80889, 119277, 242667, 357831, 728001, 781927, 2345781, 7037343, 21112029]

約数ペア:

[(1, 21112029), (3, 7037343), (9, 2345781), (27, 781927), (29, 728001), (59, 357831), (87, 242667), (177, 119277), (261, 80889), (457, 46197), (531, 39759), (783, 26963), (1371, 15399), (1593, 13253), (1711, 12339), (4113, 5133)]