20558559

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57587}}^1$

素因数の和:57614

約数の個数: 16

約数和(自身を含む): 33170688

約数和(自身を除く): 12612129

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57587, 172761, 403109, 978979, 1209327, 2936937, 6852853, 20558559]

約数ペア:

[(1, 20558559), (3, 6852853), (7, 2936937), (17, 1209327), (21, 978979), (51, 403109), (119, 172761), (357, 57587)]