20197780671

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{617}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 29256772608

約数和(自身を除く): 9058991937

約数列:

[1, 3, 23, 67, 69, 73, 97, 201, 219, 291, 617, 1541, 1679, 1851, 2231, 4623, 4891, 5037, 6499, 6693, 7081, 14191, 14673, 19497, 21243, 41339, 42573, 45041, 59849, 112493, 124017, 135123, 149477, 162863, 179547, 337479, 448431, 474427, 488589, 950797, 1035943, 1376527, 1423281, 2852391, 3017747, 3107829, 4009883, 4129581, 4368977, 9053241, 10911821, 12029649, 13106931, 32735463, 69408181, 92227309, 100486471, 208224543, 276681927, 292721459, 301459413, 878164377, 6732593557, 20197780671]

約数ペア:

[(1, 20197780671), (3, 6732593557), (23, 878164377), (67, 301459413), (69, 292721459), (73, 276681927), (97, 208224543), (201, 100486471), (219, 92227309), (291, 69408181), (617, 32735463), (1541, 13106931), (1679, 12029649), (1851, 10911821), (2231, 9053241), (4623, 4368977), (4891, 4129581), (5037, 4009883), (6499, 3107829), (6693, 3017747), (7081, 2852391), (14191, 1423281), (14673, 1376527), (19497, 1035943), (21243, 950797), (41339, 488589), (42573, 474427), (45041, 448431), (59849, 337479), (112493, 179547), (124017, 162863), (135123, 149477)]