199981887

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{33181}}^1$

素因数の和:33239

約数の個数: 24

約数和(自身を含む): 317750832

約数和(自身を除く): 117768945

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 33181, 99543, 232267, 696801, 1360421, 1625869, 4081263, 4877607, 9522947, 28568841, 66660629, 199981887]

約数ペア:

[(1, 199981887), (3, 66660629), (7, 28568841), (21, 9522947), (41, 4877607), (49, 4081263), (123, 1625869), (147, 1360421), (287, 696801), (861, 232267), (2009, 99543), (6027, 33181)]