20781718

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19717}}^1$

素因数の和:19767

約数の個数: 16

約数和(自身を含む): 34072704

約数和(自身を除く): 13290986

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19717, 39434, 335189, 611227, 670378, 1222454, 10390859, 20781718]

約数ペア:

[(1, 20781718), (2, 10390859), (17, 1222454), (31, 670378), (34, 611227), (62, 335189), (527, 39434), (1054, 19717)]