81365669

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 106168320

約数和(自身を除く): 24802651

約数列:

[1, 7, 11, 31, 77, 89, 217, 341, 383, 623, 979, 2387, 2681, 2759, 4213, 6853, 11873, 19313, 29491, 30349, 34087, 83111, 130603, 212443, 238609, 374957, 914221, 1056697, 2624699, 7396879, 11623667, 81365669]

約数ペア:

[(1, 81365669), (7, 11623667), (11, 7396879), (31, 2624699), (77, 1056697), (89, 914221), (217, 374957), (341, 238609), (383, 212443), (623, 130603), (979, 83111), (2387, 34087), (2681, 30349), (2759, 29491), (4213, 19313), (6853, 11873)]