20440665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64891}}^1$

素因数の和:64909

約数の個数: 24

約数和(自身を含む): 40492608

約数和(自身を除く): 20051943

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64891, 194673, 324455, 454237, 584019, 973365, 1362711, 2271185, 2920095, 4088133, 6813555, 20440665]

約数ペア:

[(1, 20440665), (3, 6813555), (5, 4088133), (7, 2920095), (9, 2271185), (15, 1362711), (21, 973365), (35, 584019), (45, 454237), (63, 324455), (105, 194673), (315, 64891)]