20864208

素因数分解:

$2^4\times 3^1\times {\mathrm{83}}^1\times {\mathrm{5237}}^1$

素因数の和:5331

約数の個数: 40

約数和(自身を含む): 54559008

約数和(自身を除く): 33694800

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 83, 166, 249, 332, 498, 664, 996, 1328, 1992, 3984, 5237, 10474, 15711, 20948, 31422, 41896, 62844, 83792, 125688, 251376, 434671, 869342, 1304013, 1738684, 2608026, 3477368, 5216052, 6954736, 10432104, 20864208]

約数ペア:

[(1, 20864208), (2, 10432104), (3, 6954736), (4, 5216052), (6, 3477368), (8, 2608026), (12, 1738684), (16, 1304013), (24, 869342), (48, 434671), (83, 251376), (166, 125688), (249, 83792), (332, 62844), (498, 41896), (664, 31422), (996, 20948), (1328, 15711), (1992, 10474), (3984, 5237)]