20197768

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{148513}}^1$

素因数の和:148536

約数の個数: 16

約数和(自身を含む): 40098780

約数和(自身を除く): 19901012

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 148513, 297026, 594052, 1188104, 2524721, 5049442, 10098884, 20197768]

約数ペア:

[(1, 20197768), (2, 10098884), (4, 5049442), (8, 2524721), (17, 1188104), (34, 594052), (68, 297026), (136, 148513)]