17888215

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 24076800

約数和(自身を除く): 6188585

約数列:

[1, 5, 19, 29, 43, 95, 145, 151, 215, 551, 755, 817, 1247, 2755, 2869, 4085, 4379, 6235, 6493, 14345, 21895, 23693, 32465, 83201, 118465, 123367, 188297, 416005, 616835, 941485, 3577643, 17888215]

約数ペア:

[(1, 17888215), (5, 3577643), (19, 941485), (29, 616835), (43, 416005), (95, 188297), (145, 123367), (151, 118465), (215, 83201), (551, 32465), (755, 23693), (817, 21895), (1247, 14345), (2755, 6493), (2869, 6235), (4085, 4379)]