20961969

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 34338816

約数和(自身を除く): 13376847

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 497, 827, 1207, 1491, 2481, 3621, 5789, 8449, 14059, 17367, 25347, 42177, 58717, 98413, 176151, 295239, 411019, 998189, 1233057, 2994567, 6987323, 20961969]

約数ペア:

[(1, 20961969), (3, 6987323), (7, 2994567), (17, 1233057), (21, 998189), (51, 411019), (71, 295239), (119, 176151), (213, 98413), (357, 58717), (497, 42177), (827, 25347), (1207, 17367), (1491, 14059), (2481, 8449), (3621, 5789)]