2020921

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 16

約数和(自身を含む): 2437120

約数和(自身を除く): 416199

約数列:

[1, 7, 31, 67, 139, 217, 469, 973, 2077, 4309, 9313, 14539, 30163, 65191, 288703, 2020921]

約数ペア:

[(1, 2020921), (7, 288703), (31, 65191), (67, 30163), (139, 14539), (217, 9313), (469, 4309), (973, 2077)]