21024171

素因数分解:

$3^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{643}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 35857920

約数和(自身を除く): 14833749

約数列:

[1, 3, 7, 9, 21, 27, 63, 173, 189, 519, 643, 1211, 1557, 1929, 3633, 4501, 4671, 5787, 10899, 13503, 17361, 32697, 40509, 111239, 121527, 333717, 778673, 1001151, 2336019, 3003453, 7008057, 21024171]

約数ペア:

[(1, 21024171), (3, 7008057), (7, 3003453), (9, 2336019), (21, 1001151), (27, 778673), (63, 333717), (173, 121527), (189, 111239), (519, 40509), (643, 32697), (1211, 17361), (1557, 13503), (1929, 10899), (3633, 5787), (4501, 4671)]