20359305

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15601}}^1$

素因数の和:15641

約数の個数: 24

約数和(自身を含む): 36508680

約数和(自身を除く): 16149375

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15601, 46803, 78005, 140409, 234015, 452429, 702045, 1357287, 2262145, 4071861, 6786435, 20359305]

約数ペア:

[(1, 20359305), (3, 6786435), (5, 4071861), (9, 2262145), (15, 1357287), (29, 702045), (45, 452429), (87, 234015), (145, 140409), (261, 78005), (435, 46803), (1305, 15601)]