21309756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136601}}^1$

素因数の和:136621

約数の個数: 24

約数和(自身を含む): 53547984

約数和(自身を除く): 32238228

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136601, 273202, 409803, 546404, 819606, 1639212, 1775813, 3551626, 5327439, 7103252, 10654878, 21309756]

約数ペア:

[(1, 21309756), (2, 10654878), (3, 7103252), (4, 5327439), (6, 3551626), (12, 1775813), (13, 1639212), (26, 819606), (39, 546404), (52, 409803), (78, 273202), (156, 136601)]