20731.0000000

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 16

約数和(自身を含む): 5271552

約数和(自身を除く): 670439

約数列:

[1, 11, 31, 103, 131, 341, 1133, 1441, 3193, 4061, 13493, 35123, 44671, 148423, 418283, 4601113]

約数ペア:

[(1, 4601113), (11, 418283), (31, 148423), (103, 44671), (131, 35123), (341, 13493), (1133, 4061), (1441, 3193)]