20900988

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30557}}^1$

素因数の和:30586

約数の個数: 36

約数和(自身を含む): 55615560

約数和(自身を除く): 34714572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30557, 61114, 91671, 122228, 183342, 275013, 366684, 550026, 580583, 1100052, 1161166, 1741749, 2322332, 3483498, 5225247, 6966996, 10450494, 20900988]

約数ペア:

[(1, 20900988), (2, 10450494), (3, 6966996), (4, 5225247), (6, 3483498), (9, 2322332), (12, 1741749), (18, 1161166), (19, 1100052), (36, 580583), (38, 550026), (57, 366684), (76, 275013), (114, 183342), (171, 122228), (228, 91671), (342, 61114), (684, 30557)]