21000751210

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{34427461}}^1$

素因数の和:34427529

約数の個数: 16

約数和(自身を含む): 38421047592

約数和(自身を除く): 17420296382

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 34427461, 68854922, 172137305, 344274610, 2100075121, 4200150242, 10500375605, 21000751210]

約数ペア:

[(1, 21000751210), (2, 10500375605), (5, 4200150242), (10, 2100075121), (61, 344274610), (122, 172137305), (305, 68854922), (610, 34427461)]