56721315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{540203}}^1$

素因数の和:540218

約数の個数: 16

約数和(自身を含む): 103719168

約数和(自身を除く): 46997853

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 540203, 1620609, 2701015, 3781421, 8103045, 11344263, 18907105, 56721315]

約数ペア:

[(1, 56721315), (3, 18907105), (5, 11344263), (7, 8103045), (15, 3781421), (21, 2701015), (35, 1620609), (105, 540203)]