21139941718

素因数分解:

$2^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:770

約数の個数: 96

約数和(自身を含む): 38578913280

約数和(自身を除く): 17438971562

約数列:

[1, 2, 7, 14, 47, 49, 71, 94, 98, 127, 142, 254, 329, 497, 509, 658, 889, 994, 1018, 1778, 2303, 3337, 3479, 3563, 4606, 5969, 6223, 6674, 6958, 7126, 9017, 11938, 12446, 18034, 23359, 23923, 24941, 36139, 41783, 46718, 47846, 49882, 63119, 64643, 72278, 83566, 126238, 129286, 163513, 167461, 252973, 292481, 327026, 334922, 423799, 441833, 452501, 505946, 584962, 847598, 883666, 905002, 1172227, 1698533, 1770811, 2344454, 2966593, 3038221, 3167507, 3397066, 3541622, 4589653, 5933186, 6076442, 6335014, 9179306, 11889731, 20766151, 21267547, 23779462, 32127571, 41532302, 42535094, 64255142, 83228117, 148872829, 166456234, 215713691, 224892997, 297745658, 431427382, 449785994, 1509995837, 3019991674, 10569970859, 21139941718]

約数ペア:

[(1, 21139941718), (2, 10569970859), (7, 3019991674), (14, 1509995837), (47, 449785994), (49, 431427382), (71, 297745658), (94, 224892997), (98, 215713691), (127, 166456234), (142, 148872829), (254, 83228117), (329, 64255142), (497, 42535094), (509, 41532302), (658, 32127571), (889, 23779462), (994, 21267547), (1018, 20766151), (1778, 11889731), (2303, 9179306), (3337, 6335014), (3479, 6076442), (3563, 5933186), (4606, 4589653), (5969, 3541622), (6223, 3397066), (6674, 3167507), (6958, 3038221), (7126, 2966593), (9017, 2344454), (11938, 1770811), (12446, 1698533), (18034, 1172227), (23359, 905002), (23923, 883666), (24941, 847598), (36139, 584962), (41783, 505946), (46718, 452501), (47846, 441833), (49882, 423799), (63119, 334922), (64643, 327026), (72278, 292481), (83566, 252973), (126238, 167461), (129286, 163513)]