81871186

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{19709}}^1$

素因数の和:19809

約数の個数: 16

約数和(自身を含む): 128666880

約数和(自身を除く): 46795694

約数列:

[1, 2, 31, 62, 67, 134, 2077, 4154, 19709, 39418, 610979, 1221958, 1320503, 2641006, 40935593, 81871186]

約数ペア:

[(1, 81871186), (2, 40935593), (31, 2641006), (62, 1320503), (67, 1221958), (134, 610979), (2077, 39418), (4154, 19709)]