19605982

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{38747}}^1$

素因数の和:38783

約数の個数: 16

約数和(自身を含む): 33478272

約数和(自身を除く): 13872290

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 38747, 77494, 426217, 852434, 891181, 1782362, 9802991, 19605982]

約数ペア:

[(1, 19605982), (2, 9802991), (11, 1782362), (22, 891181), (23, 852434), (46, 426217), (253, 77494), (506, 38747)]