81790121

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 102574080

約数和(自身を除く): 20783959

約数列:

[1, 7, 29, 31, 41, 203, 217, 287, 317, 899, 1189, 1271, 2219, 6293, 8323, 8897, 9193, 9827, 12997, 36859, 64351, 68789, 90979, 258013, 284983, 376913, 402907, 1994881, 2638391, 2820349, 11684303, 81790121]

約数ペア:

[(1, 81790121), (7, 11684303), (29, 2820349), (31, 2638391), (41, 1994881), (203, 402907), (217, 376913), (287, 284983), (317, 258013), (899, 90979), (1189, 68789), (1271, 64351), (2219, 36859), (6293, 12997), (8323, 9827), (8897, 9193)]