128973897

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{9931}}^1$

素因数の和:9990

約数の個数: 32

約数和(自身を含む): 211352960

約数和(自身を除く): 82379063

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 4329, 9931, 12987, 29793, 89379, 129103, 268137, 367447, 387309, 1102341, 1161927, 3307023, 3485781, 4776811, 9921069, 14330433, 42991299, 128973897]

約数ペア:

[(1, 128973897), (3, 42991299), (9, 14330433), (13, 9921069), (27, 4776811), (37, 3485781), (39, 3307023), (111, 1161927), (117, 1102341), (333, 387309), (351, 367447), (481, 268137), (999, 129103), (1443, 89379), (4329, 29793), (9931, 12987)]