201720883

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{4937}}^1$

素因数の和:5406

約数の個数: 16

約数和(自身を含む): 248875200

約数和(自身を除く): 47154317

約数列:

[1, 7, 13, 91, 449, 3143, 4937, 5837, 34559, 40859, 64181, 449267, 2216713, 15516991, 28817269, 201720883]

約数ペア:

[(1, 201720883), (7, 28817269), (13, 15516991), (91, 2216713), (449, 449267), (3143, 64181), (4937, 40859), (5837, 34559)]