21788196

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 52254720

約数和(自身を除く): 30466524

約数列:

[1, 2, 3, 4, 6, 12, 71, 107, 142, 213, 214, 239, 284, 321, 426, 428, 478, 642, 717, 852, 956, 1284, 1434, 2868, 7597, 15194, 16969, 22791, 25573, 30388, 33938, 45582, 50907, 51146, 67876, 76719, 91164, 101814, 102292, 153438, 203628, 306876, 1815683, 3631366, 5447049, 7262732, 10894098, 21788196]

約数ペア:

[(1, 21788196), (2, 10894098), (3, 7262732), (4, 5447049), (6, 3631366), (12, 1815683), (71, 306876), (107, 203628), (142, 153438), (213, 102292), (214, 101814), (239, 91164), (284, 76719), (321, 67876), (426, 51146), (428, 50907), (478, 45582), (642, 33938), (717, 30388), (852, 25573), (956, 22791), (1284, 16969), (1434, 15194), (2868, 7597)]