218393868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{21487}}^1$

素因数の和:21523

約数の個数: 72

約数和(自身を含む): 640170496

約数和(自身を除く): 421776628

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 121, 132, 154, 231, 242, 308, 363, 462, 484, 726, 847, 924, 1452, 1694, 2541, 3388, 5082, 10164, 21487, 42974, 64461, 85948, 128922, 150409, 236357, 257844, 300818, 451227, 472714, 601636, 709071, 902454, 945428, 1418142, 1654499, 1804908, 2599927, 2836284, 3308998, 4963497, 5199854, 6617996, 7799781, 9926994, 10399708, 15599562, 18199489, 19853988, 31199124, 36398978, 54598467, 72797956, 109196934, 218393868]

約数ペア:

[(1, 218393868), (2, 109196934), (3, 72797956), (4, 54598467), (6, 36398978), (7, 31199124), (11, 19853988), (12, 18199489), (14, 15599562), (21, 10399708), (22, 9926994), (28, 7799781), (33, 6617996), (42, 5199854), (44, 4963497), (66, 3308998), (77, 2836284), (84, 2599927), (121, 1804908), (132, 1654499), (154, 1418142), (231, 945428), (242, 902454), (308, 709071), (363, 601636), (462, 472714), (484, 451227), (726, 300818), (847, 257844), (924, 236357), (1452, 150409), (1694, 128922), (2541, 85948), (3388, 64461), (5082, 42974), (10164, 21487)]