21174843

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 10274757

約数列:

[1, 3, 17, 29, 51, 87, 103, 139, 309, 417, 493, 1479, 1751, 2363, 2987, 4031, 5253, 7089, 8961, 12093, 14317, 42951, 50779, 68527, 152337, 205581, 243389, 415193, 730167, 1245579, 7058281, 21174843]

約数ペア:

[(1, 21174843), (3, 7058281), (17, 1245579), (29, 730167), (51, 415193), (87, 243389), (103, 205581), (139, 152337), (309, 68527), (417, 50779), (493, 42951), (1479, 14317), (1751, 12093), (2363, 8961), (2987, 7089), (4031, 5253)]