218970843

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1861}}^1$

素因数の和:2315

約数の個数: 32

約数和(自身を含む): 360364032

約数和(自身を除く): 141393189

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 431, 1293, 1861, 3017, 5583, 5603, 9051, 13027, 16809, 24193, 39081, 39221, 72579, 117663, 169351, 508053, 802091, 2406273, 5614637, 10427183, 16843911, 31281549, 72990281, 218970843]

約数ペア:

[(1, 218970843), (3, 72990281), (7, 31281549), (13, 16843911), (21, 10427183), (39, 5614637), (91, 2406273), (273, 802091), (431, 508053), (1293, 169351), (1861, 117663), (3017, 72579), (5583, 39221), (5603, 39081), (9051, 24193), (13027, 16809)]