20984825

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 27185760

約数和(自身を除く): 6200935

約数列:

[1, 5, 25, 41, 59, 205, 295, 347, 1025, 1475, 1735, 2419, 8675, 12095, 14227, 20473, 60475, 71135, 102365, 355675, 511825, 839393, 4196965, 20984825]

約数ペア:

[(1, 20984825), (5, 4196965), (25, 839393), (41, 511825), (59, 355675), (205, 102365), (295, 71135), (347, 60475), (1025, 20473), (1475, 14227), (1735, 12095), (2419, 8675)]