20996802

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1163}}^1$

素因数の和:1247

約数の個数: 48

約数和(自身を含む): 49027680

約数和(自身を除く): 28030878

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 59, 102, 118, 153, 177, 306, 354, 531, 1003, 1062, 1163, 2006, 2326, 3009, 3489, 6018, 6978, 9027, 10467, 18054, 19771, 20934, 39542, 59313, 68617, 118626, 137234, 177939, 205851, 355878, 411702, 617553, 1166489, 1235106, 2332978, 3499467, 6998934, 10498401, 20996802]

約数ペア:

[(1, 20996802), (2, 10498401), (3, 6998934), (6, 3499467), (9, 2332978), (17, 1235106), (18, 1166489), (34, 617553), (51, 411702), (59, 355878), (102, 205851), (118, 177939), (153, 137234), (177, 118626), (306, 68617), (354, 59313), (531, 39542), (1003, 20934), (1062, 19771), (1163, 18054), (2006, 10467), (2326, 9027), (3009, 6978), (3489, 6018)]