47720001

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 77056000

約数和(自身を除く): 29335999

約数列:

[1, 3, 7, 19, 21, 57, 133, 199, 399, 597, 601, 1393, 1803, 3781, 4179, 4207, 11343, 11419, 12621, 26467, 34257, 79401, 79933, 119599, 239799, 358797, 837193, 2272381, 2511579, 6817143, 15906667, 47720001]

約数ペア:

[(1, 47720001), (3, 15906667), (7, 6817143), (19, 2511579), (21, 2272381), (57, 837193), (133, 358797), (199, 239799), (399, 119599), (597, 79933), (601, 79401), (1393, 34257), (1803, 26467), (3781, 12621), (4179, 11419), (4207, 11343)]