21742408

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{87671}}^1$

素因数の和:87708

約数の個数: 16

約数和(自身を含む): 42082560

約数和(自身を除く): 20340152

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 87671, 175342, 350684, 701368, 2717801, 5435602, 10871204, 21742408]

約数ペア:

[(1, 21742408), (2, 10871204), (4, 5435602), (8, 2717801), (31, 701368), (62, 350684), (124, 175342), (248, 87671)]