206520013

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 252663488

約数和(自身を除く): 46143475

約数列:

[1, 7, 23, 43, 161, 301, 529, 989, 1297, 3703, 6923, 9079, 22747, 29831, 55771, 159229, 208817, 390397, 686113, 1282733, 4802791, 8979131, 29502859, 206520013]

約数ペア:

[(1, 206520013), (7, 29502859), (23, 8979131), (43, 4802791), (161, 1282733), (301, 686113), (529, 390397), (989, 208817), (1297, 159229), (3703, 55771), (6923, 29831), (9079, 22747)]