20203547

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 5923813

約数列:

[1, 7, 13, 53, 59, 71, 91, 371, 413, 497, 689, 767, 923, 3127, 3763, 4189, 4823, 5369, 6461, 21889, 26341, 29323, 40651, 48919, 54457, 222017, 284557, 342433, 381199, 1554119, 2886221, 20203547]

約数ペア:

[(1, 20203547), (7, 2886221), (13, 1554119), (53, 381199), (59, 342433), (71, 284557), (91, 222017), (371, 54457), (413, 48919), (497, 40651), (689, 29323), (767, 26341), (923, 21889), (3127, 6461), (3763, 5369), (4189, 4823)]