20404144

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13147}}^1$

素因数の和:13252

約数の個数: 20

約数和(自身を含む): 39943624

約数和(自身を除く): 19539480

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13147, 26294, 52588, 105176, 210352, 1275259, 2550518, 5101036, 10202072, 20404144]

約数ペア:

[(1, 20404144), (2, 10202072), (4, 5101036), (8, 2550518), (16, 1275259), (97, 210352), (194, 105176), (388, 52588), (776, 26294), (1552, 13147)]