18439820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131713}}^1$

素因数の和:131729

約数の個数: 24

約数和(自身を含む): 44255904

約数和(自身を除く): 25816084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131713, 263426, 526852, 658565, 921991, 1317130, 1843982, 2634260, 3687964, 4609955, 9219910, 18439820]

約数ペア:

[(1, 18439820), (2, 9219910), (4, 4609955), (5, 3687964), (7, 2634260), (10, 1843982), (14, 1317130), (20, 921991), (28, 658565), (35, 526852), (70, 263426), (140, 131713)]