20431229

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 27288576

約数和(自身を除く): 6857347

約数列:

[1, 7, 13, 17, 47, 91, 119, 221, 281, 329, 611, 799, 1547, 1967, 3653, 4277, 4777, 5593, 10387, 13207, 25571, 33439, 62101, 72709, 92449, 171691, 224519, 434707, 1201837, 1571633, 2918747, 20431229]

約数ペア:

[(1, 20431229), (7, 2918747), (13, 1571633), (17, 1201837), (47, 434707), (91, 224519), (119, 171691), (221, 92449), (281, 72709), (329, 62101), (611, 33439), (799, 25571), (1547, 13207), (1967, 10387), (3653, 5593), (4277, 4777)]