21697773455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{15809}}^1$

素因数の和:16139

約数の個数: 32

約数和(自身を含む): 28098290880

約数和(自身を除く): 6400517425

約数列:

[1, 5, 17, 67, 85, 241, 335, 1139, 1205, 4097, 5695, 15809, 16147, 20485, 79045, 80735, 268753, 274499, 1059203, 1343765, 1372495, 3809969, 5296015, 18006451, 19049845, 64769473, 90032255, 255267923, 323847365, 1276339615, 4339554691, 21697773455]

約数ペア:

[(1, 21697773455), (5, 4339554691), (17, 1276339615), (67, 323847365), (85, 255267923), (241, 90032255), (335, 64769473), (1139, 19049845), (1205, 18006451), (4097, 5296015), (5695, 3809969), (15809, 1372495), (16147, 1343765), (20485, 1059203), (79045, 274499), (80735, 268753)]