217236747

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 396318720

約数和(自身を除く): 179081973

約数列:

[1, 3, 7, 13, 19, 21, 31, 39, 49, 57, 91, 93, 133, 147, 193, 217, 247, 273, 399, 403, 579, 589, 637, 651, 741, 931, 1209, 1351, 1519, 1729, 1767, 1911, 2509, 2793, 2821, 3667, 4053, 4123, 4557, 5187, 5983, 7527, 7657, 8463, 9457, 11001, 12103, 12369, 17563, 17949, 19747, 22971, 25669, 28371, 28861, 36309, 41881, 47671, 52689, 53599, 59241, 77007, 77779, 86583, 113677, 122941, 125643, 143013, 160797, 179683, 233337, 293167, 333697, 341031, 368823, 375193, 539049, 544453, 795739, 879501, 1001091, 1125579, 1477801, 1633359, 2335879, 2387217, 3811171, 4433403, 5570173, 7007637, 10344607, 11433513, 16710519, 31033821, 72412249, 217236747]

約数ペア:

[(1, 217236747), (3, 72412249), (7, 31033821), (13, 16710519), (19, 11433513), (21, 10344607), (31, 7007637), (39, 5570173), (49, 4433403), (57, 3811171), (91, 2387217), (93, 2335879), (133, 1633359), (147, 1477801), (193, 1125579), (217, 1001091), (247, 879501), (273, 795739), (399, 544453), (403, 539049), (579, 375193), (589, 368823), (637, 341031), (651, 333697), (741, 293167), (931, 233337), (1209, 179683), (1351, 160797), (1519, 143013), (1729, 125643), (1767, 122941), (1911, 113677), (2509, 86583), (2793, 77779), (2821, 77007), (3667, 59241), (4053, 53599), (4123, 52689), (4557, 47671), (5187, 41881), (5983, 36309), (7527, 28861), (7657, 28371), (8463, 25669), (9457, 22971), (11001, 19747), (12103, 17949), (12369, 17563)]