81566289

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{76159}}^1$

素因数の和:76189

約数の個数: 24

約数和(自身を含む): 142571520

約数和(自身を除く): 61005231

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 76159, 228477, 533113, 685431, 1294703, 1599339, 3884109, 4798017, 9062921, 11652327, 27188763, 81566289]

約数ペア:

[(1, 81566289), (3, 27188763), (7, 11652327), (9, 9062921), (17, 4798017), (21, 3884109), (51, 1599339), (63, 1294703), (119, 685431), (153, 533113), (357, 228477), (1071, 76159)]