19927568

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54151}}^1$

素因数の和:54182

約数の個数: 20

約数和(自身を含む): 40289088

約数和(自身を除く): 20361520

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54151, 108302, 216604, 433208, 866416, 1245473, 2490946, 4981892, 9963784, 19927568]

約数ペア:

[(1, 19927568), (2, 9963784), (4, 4981892), (8, 2490946), (16, 1245473), (23, 866416), (46, 433208), (92, 216604), (184, 108302), (368, 54151)]