20058921

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 32532864

約数和(自身を除く): 12473943

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 97, 111, 207, 243, 291, 333, 621, 851, 873, 999, 1863, 2231, 2553, 2619, 2997, 3589, 5589, 6693, 7659, 7857, 8991, 10767, 20079, 22977, 23571, 32301, 60237, 68931, 82547, 96903, 180711, 206793, 247641, 290709, 542133, 742923, 872127, 2228769, 6686307, 20058921]

約数ペア:

[(1, 20058921), (3, 6686307), (9, 2228769), (23, 872127), (27, 742923), (37, 542133), (69, 290709), (81, 247641), (97, 206793), (111, 180711), (207, 96903), (243, 82547), (291, 68931), (333, 60237), (621, 32301), (851, 23571), (873, 22977), (999, 20079), (1863, 10767), (2231, 8991), (2553, 7857), (2619, 7659), (2997, 6693), (3589, 5589)]