20018414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 33657120

約数和(自身を除く): 13638706

約数列:

[1, 2, 13, 26, 41, 82, 89, 178, 211, 422, 533, 1066, 1157, 2314, 2743, 3649, 5486, 7298, 8651, 17302, 18779, 37558, 47437, 94874, 112463, 224926, 244127, 488254, 769939, 1539878, 10009207, 20018414]

約数ペア:

[(1, 20018414), (2, 10009207), (13, 1539878), (26, 769939), (41, 488254), (82, 244127), (89, 224926), (178, 112463), (211, 94874), (422, 47437), (533, 37558), (1066, 18779), (1157, 17302), (2314, 8651), (2743, 7298), (3649, 5486)]