13320979

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 17473536

約数和(自身を除く): 4152557

約数列:

[1, 7, 17, 23, 31, 119, 157, 161, 217, 391, 527, 713, 1099, 2669, 2737, 3611, 3689, 4867, 4991, 12121, 18683, 25277, 34069, 61387, 82739, 84847, 111941, 429709, 579173, 783587, 1902997, 13320979]

約数ペア:

[(1, 13320979), (7, 1902997), (17, 783587), (23, 579173), (31, 429709), (119, 111941), (157, 84847), (161, 82739), (217, 61387), (391, 34069), (527, 25277), (713, 18683), (1099, 12121), (2669, 4991), (2737, 4867), (3611, 3689)]