20453955

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43987}}^1$

素因数の和:44026

約数の個数: 16

約数和(自身を含む): 33782784

約数和(自身を除く): 13328829

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 43987, 131961, 219935, 659805, 1363597, 4090791, 6817985, 20453955]

約数ペア:

[(1, 20453955), (3, 6817985), (5, 4090791), (15, 1363597), (31, 659805), (93, 219935), (155, 131961), (465, 43987)]