20781617682

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{87251}}^1$

素因数の和:87423

約数の個数: 64

約数和(自身を含む): 48849951744

約数和(自身を除く): 28068334062

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 107, 159, 214, 318, 321, 371, 642, 742, 749, 1113, 1498, 2226, 2247, 4494, 5671, 11342, 17013, 34026, 39697, 79394, 87251, 119091, 174502, 238182, 261753, 523506, 610757, 1221514, 1832271, 3664542, 4624303, 9248606, 9335857, 13872909, 18671714, 27745818, 28007571, 32370121, 56015142, 64740242, 65350999, 97110363, 130701998, 194220726, 196052997, 392105994, 494800421, 989600842, 1484401263, 2968802526, 3463602947, 6927205894, 10390808841, 20781617682]

約数ペア:

[(1, 20781617682), (2, 10390808841), (3, 6927205894), (6, 3463602947), (7, 2968802526), (14, 1484401263), (21, 989600842), (42, 494800421), (53, 392105994), (106, 196052997), (107, 194220726), (159, 130701998), (214, 97110363), (318, 65350999), (321, 64740242), (371, 56015142), (642, 32370121), (742, 28007571), (749, 27745818), (1113, 18671714), (1498, 13872909), (2226, 9335857), (2247, 9248606), (4494, 4624303), (5671, 3664542), (11342, 1832271), (17013, 1221514), (34026, 610757), (39697, 523506), (79394, 261753), (87251, 238182), (119091, 174502)]