21915671144

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{467}}^1\times {\mathrm{3469}}^1$

素因数の和:4050

約数の個数: 64

約数和(自身を含む): 43846920000

約数和(自身を除く): 21931248856

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 467, 712, 934, 1691, 1868, 3382, 3469, 3736, 6764, 6938, 8873, 13528, 13876, 17746, 27752, 35492, 41563, 65911, 70984, 83126, 131822, 166252, 263644, 308741, 332504, 527288, 617482, 789697, 1234964, 1579394, 1620023, 2469928, 3158788, 3240046, 5866079, 6317576, 6480092, 11732158, 12960184, 23464316, 30780437, 46928632, 61560874, 123121748, 144182047, 246243496, 288364094, 576728188, 1153456376, 2739458893, 5478917786, 10957835572, 21915671144]

約数ペア:

[(1, 21915671144), (2, 10957835572), (4, 5478917786), (8, 2739458893), (19, 1153456376), (38, 576728188), (76, 288364094), (89, 246243496), (152, 144182047), (178, 123121748), (356, 61560874), (467, 46928632), (712, 30780437), (934, 23464316), (1691, 12960184), (1868, 11732158), (3382, 6480092), (3469, 6317576), (3736, 5866079), (6764, 3240046), (6938, 3158788), (8873, 2469928), (13528, 1620023), (13876, 1579394), (17746, 1234964), (27752, 789697), (35492, 617482), (41563, 527288), (65911, 332504), (70984, 308741), (83126, 263644), (131822, 166252)]