20689584

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10513}}^1$

素因数の和:10565

約数の個数: 40

約数和(自身を含む): 54756912

約数和(自身を除く): 34067328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10513, 21026, 31539, 42052, 63078, 84104, 126156, 168208, 252312, 431033, 504624, 862066, 1293099, 1724132, 2586198, 3448264, 5172396, 6896528, 10344792, 20689584]

約数ペア:

[(1, 20689584), (2, 10344792), (3, 6896528), (4, 5172396), (6, 3448264), (8, 2586198), (12, 1724132), (16, 1293099), (24, 862066), (41, 504624), (48, 431033), (82, 252312), (123, 168208), (164, 126156), (246, 84104), (328, 63078), (492, 42052), (656, 31539), (984, 21026), (1968, 10513)]