20972916

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20089}}^1$

素因数の和:20128

約数の個数: 36

約数和(自身を含む): 54845700

約数和(自身を除く): 33872784

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20089, 40178, 60267, 80356, 120534, 180801, 241068, 361602, 582581, 723204, 1165162, 1747743, 2330324, 3495486, 5243229, 6990972, 10486458, 20972916]

約数ペア:

[(1, 20972916), (2, 10486458), (3, 6990972), (4, 5243229), (6, 3495486), (9, 2330324), (12, 1747743), (18, 1165162), (29, 723204), (36, 582581), (58, 361602), (87, 241068), (116, 180801), (174, 120534), (261, 80356), (348, 60267), (522, 40178), (1044, 20089)]