21618116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{947}}^1$

素因数の和:1403

約数の個数: 24

約数和(自身を含む): 40877760

約数和(自身を除く): 19259644

約数列:

[1, 2, 4, 13, 26, 52, 439, 878, 947, 1756, 1894, 3788, 5707, 11414, 12311, 22828, 24622, 49244, 415733, 831466, 1662932, 5404529, 10809058, 21618116]

約数ペア:

[(1, 21618116), (2, 10809058), (4, 5404529), (13, 1662932), (26, 831466), (52, 415733), (439, 49244), (878, 24622), (947, 22828), (1756, 12311), (1894, 11414), (3788, 5707)]