20852930

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42557}}^1$

素因数の和:42578

約数の個数: 24

約数和(自身を含む): 43664508

約数和(自身を除く): 22811578

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42557, 85114, 212785, 297899, 425570, 595798, 1489495, 2085293, 2978990, 4170586, 10426465, 20852930]

約数ペア:

[(1, 20852930), (2, 10426465), (5, 4170586), (7, 2978990), (10, 2085293), (14, 1489495), (35, 595798), (49, 425570), (70, 297899), (98, 212785), (245, 85114), (490, 42557)]