21198723

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11093}}^1$

素因数の和:11123

約数の個数: 24

約数和(自身を含む): 35412048

約数和(自身を除く): 14213325

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11093, 33279, 77651, 144209, 232953, 432627, 543557, 1009463, 1630671, 3028389, 7066241, 21198723]

約数ペア:

[(1, 21198723), (3, 7066241), (7, 3028389), (13, 1630671), (21, 1009463), (39, 543557), (49, 432627), (91, 232953), (147, 144209), (273, 77651), (637, 33279), (1911, 11093)]