21021006

素因数分解:

$2^1\times 3^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 21902514

約数列:

[1, 2, 3, 6, 107, 137, 214, 239, 274, 321, 411, 478, 642, 717, 822, 1434, 14659, 25573, 29318, 32743, 43977, 51146, 65486, 76719, 87954, 98229, 153438, 196458, 3503501, 7007002, 10510503, 21021006]

約数ペア:

[(1, 21021006), (2, 10510503), (3, 7007002), (6, 3503501), (107, 196458), (137, 153438), (214, 98229), (239, 87954), (274, 76719), (321, 65486), (411, 51146), (478, 43977), (642, 32743), (717, 29318), (822, 25573), (1434, 14659)]