210957201

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1251

約数の個数: 72

約数和(自身を含む): 394377984

約数和(自身を除く): 183420783

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 117, 147, 217, 273, 279, 403, 441, 637, 651, 819, 1187, 1209, 1519, 1911, 1953, 2821, 3561, 3627, 4557, 5733, 8309, 8463, 10683, 13671, 15431, 19747, 24927, 25389, 36797, 46293, 58163, 59241, 74781, 108017, 110391, 138879, 174489, 177723, 257579, 324051, 331173, 478361, 523467, 756119, 772737, 972153, 1435083, 1803053, 2268357, 2318211, 3348527, 4305249, 5409159, 6805071, 10045581, 16227477, 23439689, 30136743, 70319067, 210957201]

約数ペア:

[(1, 210957201), (3, 70319067), (7, 30136743), (9, 23439689), (13, 16227477), (21, 10045581), (31, 6805071), (39, 5409159), (49, 4305249), (63, 3348527), (91, 2318211), (93, 2268357), (117, 1803053), (147, 1435083), (217, 972153), (273, 772737), (279, 756119), (403, 523467), (441, 478361), (637, 331173), (651, 324051), (819, 257579), (1187, 177723), (1209, 174489), (1519, 138879), (1911, 110391), (1953, 108017), (2821, 74781), (3561, 59241), (3627, 58163), (4557, 46293), (5733, 36797), (8309, 25389), (8463, 24927), (10683, 19747), (13671, 15431)]