20743288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{571}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 41184000

約数和(自身を除く): 20440712

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 239, 478, 571, 956, 1142, 1912, 2284, 4541, 4568, 9082, 10849, 18164, 21698, 36328, 43396, 86792, 136469, 272938, 545876, 1091752, 2592911, 5185822, 10371644, 20743288]

約数ペア:

[(1, 20743288), (2, 10371644), (4, 5185822), (8, 2592911), (19, 1091752), (38, 545876), (76, 272938), (152, 136469), (239, 86792), (478, 43396), (571, 36328), (956, 21698), (1142, 18164), (1912, 10849), (2284, 9082), (4541, 4568)]