21246678

素因数分解:

$2^1\times 3^3\times {\mathrm{509}}^1\times {\mathrm{773}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 47368800

約数和(自身を除く): 26122122

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 509, 773, 1018, 1527, 1546, 2319, 3054, 4581, 4638, 6957, 9162, 13743, 13914, 20871, 27486, 41742, 393457, 786914, 1180371, 2360742, 3541113, 7082226, 10623339, 21246678]

約数ペア:

[(1, 21246678), (2, 10623339), (3, 7082226), (6, 3541113), (9, 2360742), (18, 1180371), (27, 786914), (54, 393457), (509, 41742), (773, 27486), (1018, 20871), (1527, 13914), (1546, 13743), (2319, 9162), (3054, 6957), (4581, 4638)]