20152671

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^3\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 34714368

約数和(自身を除く): 14561697

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 103, 121, 147, 231, 309, 363, 539, 721, 847, 1133, 1331, 1617, 2163, 2541, 3399, 3993, 5047, 5929, 7931, 9317, 12463, 15141, 17787, 23793, 27951, 37389, 55517, 65219, 87241, 137093, 166551, 195657, 261723, 411279, 610687, 959651, 1832061, 2878953, 6717557, 20152671]

約数ペア:

[(1, 20152671), (3, 6717557), (7, 2878953), (11, 1832061), (21, 959651), (33, 610687), (49, 411279), (77, 261723), (103, 195657), (121, 166551), (147, 137093), (231, 87241), (309, 65219), (363, 55517), (539, 37389), (721, 27951), (847, 23793), (1133, 17787), (1331, 15141), (1617, 12463), (2163, 9317), (2541, 7931), (3399, 5929), (3993, 5047)]