20217963318

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:1086

約数の個数: 128

約数和(自身を含む): 48037017600

約数和(自身を除く): 27819054282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 103, 106, 109, 159, 206, 218, 309, 318, 327, 371, 618, 654, 721, 742, 763, 809, 1113, 1442, 1526, 1618, 2163, 2226, 2289, 2427, 4326, 4578, 4854, 5459, 5663, 5777, 10918, 11227, 11326, 11554, 16377, 16989, 17331, 22454, 32754, 33681, 33978, 34662, 38213, 40439, 42877, 67362, 76426, 78589, 80878, 83327, 85754, 88181, 114639, 121317, 128631, 157178, 166654, 176362, 229278, 235767, 242634, 249981, 257262, 264543, 300139, 471534, 499962, 529086, 583289, 595031, 600278, 617267, 900417, 1166578, 1190062, 1234534, 1749867, 1785093, 1800834, 1851801, 3499734, 3570186, 3703602, 4165217, 4416331, 4673593, 8330434, 8832662, 9082643, 9347186, 12495651, 13248993, 14020779, 18165286, 24991302, 26497986, 27247929, 28041558, 30914317, 32715151, 54495858, 61828634, 63578501, 65430302, 92742951, 98145453, 127157002, 185485902, 190735503, 196290906, 381471006, 481380079, 962760158, 1444140237, 2888280474, 3369660553, 6739321106, 10108981659, 20217963318]

約数ペア:

[(1, 20217963318), (2, 10108981659), (3, 6739321106), (6, 3369660553), (7, 2888280474), (14, 1444140237), (21, 962760158), (42, 481380079), (53, 381471006), (103, 196290906), (106, 190735503), (109, 185485902), (159, 127157002), (206, 98145453), (218, 92742951), (309, 65430302), (318, 63578501), (327, 61828634), (371, 54495858), (618, 32715151), (654, 30914317), (721, 28041558), (742, 27247929), (763, 26497986), (809, 24991302), (1113, 18165286), (1442, 14020779), (1526, 13248993), (1618, 12495651), (2163, 9347186), (2226, 9082643), (2289, 8832662), (2427, 8330434), (4326, 4673593), (4578, 4416331), (4854, 4165217), (5459, 3703602), (5663, 3570186), (5777, 3499734), (10918, 1851801), (11227, 1800834), (11326, 1785093), (11554, 1749867), (16377, 1234534), (16989, 1190062), (17331, 1166578), (22454, 900417), (32754, 617267), (33681, 600278), (33978, 595031), (34662, 583289), (38213, 529086), (40439, 499962), (42877, 471534), (67362, 300139), (76426, 264543), (78589, 257262), (80878, 249981), (83327, 242634), (85754, 235767), (88181, 229278), (114639, 176362), (121317, 166654), (128631, 157178)]