20990914

素因数分解:

$2^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{827}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 37756800

約数和(自身を除く): 16765886

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 343, 518, 686, 827, 1654, 1813, 3626, 5789, 11578, 12691, 25382, 30599, 40523, 61198, 81046, 214193, 283661, 428386, 567322, 1499351, 2998702, 10495457, 20990914]

約数ペア:

[(1, 20990914), (2, 10495457), (7, 2998702), (14, 1499351), (37, 567322), (49, 428386), (74, 283661), (98, 214193), (259, 81046), (343, 61198), (518, 40523), (686, 30599), (827, 25382), (1654, 12691), (1813, 11578), (3626, 5789)]