81661251

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{3877}}^1$

素因数の和:3963

約数の個数: 32

約数和(自身を含む): 134023680

約数和(自身を除く): 52362429

約数列:

[1, 3, 7, 17, 21, 51, 59, 119, 177, 357, 413, 1003, 1239, 3009, 3877, 7021, 11631, 21063, 27139, 65909, 81417, 197727, 228743, 461363, 686229, 1384089, 1601201, 3888631, 4803603, 11665893, 27220417, 81661251]

約数ペア:

[(1, 81661251), (3, 27220417), (7, 11665893), (17, 4803603), (21, 3888631), (51, 1601201), (59, 1384089), (119, 686229), (177, 461363), (357, 228743), (413, 197727), (1003, 81417), (1239, 65909), (3009, 27139), (3877, 21063), (7021, 11631)]