71862021

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{857}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 130635648

約数和(自身を除く): 58773627

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 857, 1089, 1331, 2541, 2571, 3993, 5999, 7623, 7713, 9317, 9427, 11979, 17997, 27951, 28281, 53991, 65989, 83853, 84843, 103697, 197967, 311091, 593901, 725879, 933273, 1140667, 2177637, 3422001, 6532911, 7984669, 10266003, 23954007, 71862021]

約数ペア:

[(1, 71862021), (3, 23954007), (7, 10266003), (9, 7984669), (11, 6532911), (21, 3422001), (33, 2177637), (63, 1140667), (77, 933273), (99, 725879), (121, 593901), (231, 311091), (363, 197967), (693, 103697), (847, 84843), (857, 83853), (1089, 65989), (1331, 53991), (2541, 28281), (2571, 27951), (3993, 17997), (5999, 11979), (7623, 9427), (7713, 9317)]