20842358

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 33881760

約数和(自身を除く): 13039402

約数列:

[1, 2, 29, 43, 58, 61, 86, 122, 137, 274, 1247, 1769, 2494, 2623, 3538, 3973, 5246, 5891, 7946, 8357, 11782, 16714, 76067, 152134, 170839, 242353, 341678, 359351, 484706, 718702, 10421179, 20842358]

約数ペア:

[(1, 20842358), (2, 10421179), (29, 718702), (43, 484706), (58, 359351), (61, 341678), (86, 242353), (122, 170839), (137, 152134), (274, 76067), (1247, 16714), (1769, 11782), (2494, 8357), (2623, 7946), (3538, 5891), (3973, 5246)]