21000751135

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1\times {\mathrm{1433}}^1$

素因数の和:2528

約数の個数: 64

約数和(自身を含む): 32070205440

約数和(自身を除く): 11069454305

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1039, 1085, 1433, 2015, 2821, 5195, 7165, 7273, 10031, 13507, 14105, 18629, 32209, 36365, 44423, 50155, 67535, 93145, 94549, 130403, 161045, 222115, 225463, 310961, 418717, 472745, 577499, 652015, 1127315, 1488887, 1554805, 2093585, 2887495, 2931019, 4042493, 7444435, 10422209, 14655095, 19355531, 20212465, 46155497, 52111045, 96777655, 135488717, 230777485, 323088479, 600021461, 677443585, 1615442395, 3000107305, 4200150227, 21000751135]

約数ペア:

[(1, 21000751135), (5, 4200150227), (7, 3000107305), (13, 1615442395), (31, 677443585), (35, 600021461), (65, 323088479), (91, 230777485), (155, 135488717), (217, 96777655), (403, 52111045), (455, 46155497), (1039, 20212465), (1085, 19355531), (1433, 14655095), (2015, 10422209), (2821, 7444435), (5195, 4042493), (7165, 2931019), (7273, 2887495), (10031, 2093585), (13507, 1554805), (14105, 1488887), (18629, 1127315), (32209, 652015), (36365, 577499), (44423, 472745), (50155, 418717), (67535, 310961), (93145, 225463), (94549, 222115), (130403, 161045)]