20021418

素因数分解:

$2^1\times 3^4\times {\mathrm{73}}^1\times {\mathrm{1693}}^1$

素因数の和:1780

約数の個数: 40

約数和(自身を含む): 45504228

約数和(自身を除く): 25482810

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 219, 438, 657, 1314, 1693, 1971, 3386, 3942, 5079, 5913, 10158, 11826, 15237, 30474, 45711, 91422, 123589, 137133, 247178, 274266, 370767, 741534, 1112301, 2224602, 3336903, 6673806, 10010709, 20021418]

約数ペア:

[(1, 20021418), (2, 10010709), (3, 6673806), (6, 3336903), (9, 2224602), (18, 1112301), (27, 741534), (54, 370767), (73, 274266), (81, 247178), (146, 137133), (162, 123589), (219, 91422), (438, 45711), (657, 30474), (1314, 15237), (1693, 11826), (1971, 10158), (3386, 5913), (3942, 5079)]