20121015215

素因数分解:

$5^1\times 7^1\times {\mathrm{3469}}^1\times {\mathrm{165721}}^1$

素因数の和:169202

約数の個数: 16

約数和(自身を含む): 27602656320

約数和(自身を除く): 7481641105

約数列:

[1, 5, 7, 35, 3469, 17345, 24283, 121415, 165721, 828605, 1160047, 5800235, 574886149, 2874430745, 4024203043, 20121015215]

約数ペア:

[(1, 20121015215), (5, 4024203043), (7, 2874430745), (35, 574886149), (3469, 5800235), (17345, 1160047), (24283, 828605), (121415, 165721)]