28430409

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 46400256

約数和(自身を除く): 17969847

約数列:

[1, 3, 7, 17, 21, 51, 97, 119, 291, 357, 679, 821, 1649, 2037, 2463, 4947, 5747, 11543, 13957, 17241, 34629, 41871, 79637, 97699, 238911, 293097, 557459, 1353829, 1672377, 4061487, 9476803, 28430409]

約数ペア:

[(1, 28430409), (3, 9476803), (7, 4061487), (17, 1672377), (21, 1353829), (51, 557459), (97, 293097), (119, 238911), (291, 97699), (357, 79637), (679, 41871), (821, 34629), (1649, 17241), (2037, 13957), (2463, 11543), (4947, 5747)]