21319142

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{19069}}^1$

素因数の和:19127

約数の個数: 16

約数和(自身を含む): 35241360

約数和(自身を除く): 13922218

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 19069, 38138, 247897, 495794, 819967, 1639934, 10659571, 21319142]

約数ペア:

[(1, 21319142), (2, 10659571), (13, 1639934), (26, 819967), (43, 495794), (86, 247897), (559, 38138), (1118, 19069)]