20345355

素因数分解:

$3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1049}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 35380800

約数和(自身を除く): 15035445

約数列:

[1, 3, 5, 9, 15, 45, 431, 1049, 1293, 2155, 3147, 3879, 5245, 6465, 9441, 15735, 19395, 47205, 452119, 1356357, 2260595, 4069071, 6781785, 20345355]

約数ペア:

[(1, 20345355), (3, 6781785), (5, 4069071), (9, 2260595), (15, 1356357), (45, 452119), (431, 47205), (1049, 19395), (1293, 15735), (2155, 9441), (3147, 6465), (3879, 5245)]