20996222009

素因数分解:

$7^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1\times {\mathrm{80737}}^1$

素因数の和:81224

約数の個数: 16

約数和(自身を含む): 24306659328

約数和(自身を除く): 3310437319

約数列:

[1, 7, 97, 383, 679, 2681, 37151, 80737, 260057, 565159, 7831489, 30922271, 54820423, 216455897, 2999460287, 20996222009]

約数ペア:

[(1, 20996222009), (7, 2999460287), (97, 216455897), (383, 54820423), (679, 30922271), (2681, 7831489), (37151, 565159), (80737, 260057)]