203908887

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2243}}^1$

素因数の和:2309

約数の個数: 64

約数和(自身を含む): 382018560

約数和(自身を除く): 178109673

約数列:

[1, 3, 7, 9, 13, 21, 27, 37, 39, 63, 91, 111, 117, 189, 259, 273, 333, 351, 481, 777, 819, 999, 1443, 2243, 2331, 2457, 3367, 4329, 6729, 6993, 10101, 12987, 15701, 20187, 29159, 30303, 47103, 60561, 82991, 87477, 90909, 141309, 204113, 248973, 262431, 423927, 580937, 612339, 746919, 787293, 1078883, 1742811, 1837017, 2240757, 3236649, 5228433, 5511051, 7552181, 9709947, 15685299, 22656543, 29129841, 67969629, 203908887]

約数ペア:

[(1, 203908887), (3, 67969629), (7, 29129841), (9, 22656543), (13, 15685299), (21, 9709947), (27, 7552181), (37, 5511051), (39, 5228433), (63, 3236649), (91, 2240757), (111, 1837017), (117, 1742811), (189, 1078883), (259, 787293), (273, 746919), (333, 612339), (351, 580937), (481, 423927), (777, 262431), (819, 248973), (999, 204113), (1443, 141309), (2243, 90909), (2331, 87477), (2457, 82991), (3367, 60561), (4329, 47103), (6729, 30303), (6993, 29159), (10101, 20187), (12987, 15701)]