20197708

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{136471}}^1$

素因数の和:136512

約数の個数: 12

約数和(自身を含む): 36301552

約数和(自身を除く): 16103844

約数列:

[1, 2, 4, 37, 74, 148, 136471, 272942, 545884, 5049427, 10098854, 20197708]

約数ペア:

[(1, 20197708), (2, 10098854), (4, 5049427), (37, 545884), (74, 272942), (148, 136471)]