21741213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 33062400

約数和(自身を除く): 11321187

約数列:

[1, 3, 13, 29, 39, 47, 87, 141, 377, 409, 611, 1131, 1227, 1363, 1833, 4089, 5317, 11861, 15951, 17719, 19223, 35583, 53157, 57669, 154193, 249899, 462579, 557467, 749697, 1672401, 7247071, 21741213]

約数ペア:

[(1, 21741213), (3, 7247071), (13, 1672401), (29, 749697), (39, 557467), (47, 462579), (87, 249899), (141, 154193), (377, 57669), (409, 53157), (611, 35583), (1131, 19223), (1227, 17719), (1363, 15951), (1833, 11861), (4089, 5317)]