21879972

素因数分解:

$2^2\times 3^2\times {\mathrm{239}}^1\times {\mathrm{2543}}^1$

素因数の和:2792

約数の個数: 36

約数和(自身を含む): 55560960

約数和(自身を除く): 33680988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 239, 478, 717, 956, 1434, 2151, 2543, 2868, 4302, 5086, 7629, 8604, 10172, 15258, 22887, 30516, 45774, 91548, 607777, 1215554, 1823331, 2431108, 3646662, 5469993, 7293324, 10939986, 21879972]

約数ペア:

[(1, 21879972), (2, 10939986), (3, 7293324), (4, 5469993), (6, 3646662), (9, 2431108), (12, 1823331), (18, 1215554), (36, 607777), (239, 91548), (478, 45774), (717, 30516), (956, 22887), (1434, 15258), (2151, 10172), (2543, 8604), (2868, 7629), (4302, 5086)]