31997273

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21871}}^1$

素因数の和:21908

約数の個数: 16

約数和(自身を含む): 41994240

約数和(自身を除く): 9996967

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 21871, 153097, 240581, 415549, 1684067, 2908843, 4571039, 31997273]

約数ペア:

[(1, 31997273), (7, 4571039), (11, 2908843), (19, 1684067), (77, 415549), (133, 240581), (209, 153097), (1463, 21871)]