20497218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3511}}^1$

素因数の和:3662

約数の個数: 32

約数和(自身を含む): 47201280

約数和(自身を除く): 26704062

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 139, 278, 417, 834, 973, 1946, 2919, 3511, 5838, 7022, 10533, 21066, 24577, 49154, 73731, 147462, 488029, 976058, 1464087, 2928174, 3416203, 6832406, 10248609, 20497218]

約数ペア:

[(1, 20497218), (2, 10248609), (3, 6832406), (6, 3416203), (7, 2928174), (14, 1464087), (21, 976058), (42, 488029), (139, 147462), (278, 73731), (417, 49154), (834, 24577), (973, 21066), (1946, 10533), (2919, 7022), (3511, 5838)]