211221993

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{127781}}^1$

素因数の和:127832

約数の個数: 16

約数和(自身を含む): 306676800

約数和(自身を除く): 95454807

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 127781, 383343, 2427839, 3705649, 7283517, 11116947, 70407331, 211221993]

約数ペア:

[(1, 211221993), (3, 70407331), (19, 11116947), (29, 7283517), (57, 3705649), (87, 2427839), (551, 383343), (1653, 127781)]