215209099

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{21101}}^1$

素因数の和:21186

約数の個数: 16

約数和(自身を含む): 259301376

約数和(自身を除く): 44092277

約数列:

[1, 7, 31, 47, 217, 329, 1457, 10199, 21101, 147707, 654131, 991747, 4578917, 6942229, 30744157, 215209099]

約数ペア:

[(1, 215209099), (7, 30744157), (31, 6942229), (47, 4578917), (217, 991747), (329, 654131), (1457, 147707), (10199, 21101)]