1389255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 2585088

約数和(自身を除く): 1195833

約数列:

[1, 3, 5, 7, 15, 21, 35, 101, 105, 131, 303, 393, 505, 655, 707, 917, 1515, 1965, 2121, 2751, 3535, 4585, 10605, 13231, 13755, 39693, 66155, 92617, 198465, 277851, 463085, 1389255]

約数ペア:

[(1, 1389255), (3, 463085), (5, 277851), (7, 198465), (15, 92617), (21, 66155), (35, 39693), (101, 13755), (105, 13231), (131, 10605), (303, 4585), (393, 3535), (505, 2751), (655, 2121), (707, 1965), (917, 1515)]