28077399

素因数分解:

$3^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1277}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 46519200

約数和(自身を除く): 18441801

約数列:

[1, 3, 7, 9, 21, 63, 349, 1047, 1277, 2443, 3141, 3831, 7329, 8939, 11493, 21987, 26817, 80451, 445673, 1337019, 3119711, 4011057, 9359133, 28077399]

約数ペア:

[(1, 28077399), (3, 9359133), (7, 4011057), (9, 3119711), (21, 1337019), (63, 445673), (349, 80451), (1047, 26817), (1277, 21987), (2443, 11493), (3141, 8939), (3831, 7329)]