81921532

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37997}}^1$

素因数の和:38026

約数の個数: 36

約数和(自身を含む): 181934424

約数和(自身を除く): 100012892

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 37997, 75994, 151988, 265979, 417967, 531958, 835934, 1063916, 1671868, 1861853, 2925769, 3723706, 5851538, 7447412, 11703076, 20480383, 40960766, 81921532]

約数ペア:

[(1, 81921532), (2, 40960766), (4, 20480383), (7, 11703076), (11, 7447412), (14, 5851538), (22, 3723706), (28, 2925769), (44, 1861853), (49, 1671868), (77, 1063916), (98, 835934), (154, 531958), (196, 417967), (308, 265979), (539, 151988), (1078, 75994), (2156, 37997)]