18545079

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 31370976

約数和(自身を除く): 12825897

約数列:

[1, 3, 7, 17, 21, 41, 49, 51, 119, 123, 147, 181, 287, 357, 543, 697, 833, 861, 1267, 2009, 2091, 2499, 3077, 3801, 4879, 6027, 7421, 8869, 9231, 14637, 21539, 22263, 26607, 34153, 51947, 64617, 102459, 126157, 150773, 155841, 363629, 378471, 452319, 883099, 1090887, 2649297, 6181693, 18545079]

約数ペア:

[(1, 18545079), (3, 6181693), (7, 2649297), (17, 1090887), (21, 883099), (41, 452319), (49, 378471), (51, 363629), (119, 155841), (123, 150773), (147, 126157), (181, 102459), (287, 64617), (357, 51947), (543, 34153), (697, 26607), (833, 22263), (861, 21539), (1267, 14637), (2009, 9231), (2091, 8869), (2499, 7421), (3077, 6027), (3801, 4879)]