78921801

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{9419}}^1$

素因数の和:9458

約数の個数: 36

約数和(自身を含む): 139604400

約数和(自身を除く): 60682599

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 8379, 9419, 28257, 65933, 84771, 178961, 197799, 461531, 536883, 593397, 1252727, 1384593, 1610649, 3758181, 4153779, 8769089, 11274543, 26307267, 78921801]

約数ペア:

[(1, 78921801), (3, 26307267), (7, 11274543), (9, 8769089), (19, 4153779), (21, 3758181), (49, 1610649), (57, 1384593), (63, 1252727), (133, 593397), (147, 536883), (171, 461531), (399, 197799), (441, 178961), (931, 84771), (1197, 65933), (2793, 28257), (8379, 9419)]