28325213

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 8170147

約数列:

[1, 7, 17, 23, 79, 119, 131, 161, 391, 553, 917, 1343, 1817, 2227, 2737, 3013, 9401, 10349, 12719, 15589, 21091, 30889, 51221, 72443, 175933, 216223, 238027, 358547, 1231531, 1666189, 4046459, 28325213]

約数ペア:

[(1, 28325213), (7, 4046459), (17, 1666189), (23, 1231531), (79, 358547), (119, 238027), (131, 216223), (161, 175933), (391, 72443), (553, 51221), (917, 30889), (1343, 21091), (1817, 15589), (2227, 12719), (2737, 10349), (3013, 9401)]