20815548

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 36084036

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 47, 51, 52, 68, 78, 94, 102, 141, 156, 167, 188, 204, 221, 282, 334, 442, 501, 564, 611, 663, 668, 799, 884, 1002, 1222, 1326, 1598, 1833, 2004, 2171, 2397, 2444, 2652, 2839, 3196, 3666, 4342, 4794, 5678, 6513, 7332, 7849, 8517, 8684, 9588, 10387, 11356, 13026, 15698, 17034, 20774, 23547, 26052, 31161, 31396, 34068, 36907, 41548, 47094, 62322, 73814, 94188, 102037, 110721, 124644, 133433, 147628, 204074, 221442, 266866, 306111, 400299, 408148, 442884, 533732, 612222, 800598, 1224444, 1601196, 1734629, 3469258, 5203887, 6938516, 10407774, 20815548]

約数ペア:

[(1, 20815548), (2, 10407774), (3, 6938516), (4, 5203887), (6, 3469258), (12, 1734629), (13, 1601196), (17, 1224444), (26, 800598), (34, 612222), (39, 533732), (47, 442884), (51, 408148), (52, 400299), (68, 306111), (78, 266866), (94, 221442), (102, 204074), (141, 147628), (156, 133433), (167, 124644), (188, 110721), (204, 102037), (221, 94188), (282, 73814), (334, 62322), (442, 47094), (501, 41548), (564, 36907), (611, 34068), (663, 31396), (668, 31161), (799, 26052), (884, 23547), (1002, 20774), (1222, 17034), (1326, 15698), (1598, 13026), (1833, 11356), (2004, 10387), (2171, 9588), (2397, 8684), (2444, 8517), (2652, 7849), (2839, 7332), (3196, 6513), (3666, 5678), (4342, 4794)]