217888398

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:679

約数の個数: 144

約数和(自身を含む): 611485056

約数和(自身を除く): 393596658

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 49, 62, 63, 78, 91, 93, 98, 117, 126, 147, 182, 186, 217, 234, 273, 279, 294, 403, 434, 441, 546, 558, 613, 637, 651, 806, 819, 882, 1209, 1226, 1274, 1302, 1519, 1638, 1839, 1911, 1953, 2418, 2821, 3038, 3627, 3678, 3822, 3906, 4291, 4557, 5517, 5642, 5733, 7254, 7969, 8463, 8582, 9114, 11034, 11466, 12873, 13671, 15938, 16926, 19003, 19747, 23907, 25389, 25746, 27342, 30037, 38006, 38619, 39494, 47814, 50778, 55783, 57009, 59241, 60074, 71721, 77238, 90111, 111566, 114018, 118482, 133021, 143442, 167349, 171027, 177723, 180222, 247039, 266042, 270333, 334698, 342054, 355446, 390481, 399063, 494078, 502047, 540666, 741117, 780962, 798126, 931147, 1004094, 1171443, 1197189, 1482234, 1729273, 1862294, 2223351, 2342886, 2394378, 2793441, 3458546, 3514329, 4446702, 5187819, 5586882, 7028658, 8380323, 10375638, 12104911, 15563457, 16760646, 24209822, 31126914, 36314733, 72629466, 108944199, 217888398]

約数ペア:

[(1, 217888398), (2, 108944199), (3, 72629466), (6, 36314733), (7, 31126914), (9, 24209822), (13, 16760646), (14, 15563457), (18, 12104911), (21, 10375638), (26, 8380323), (31, 7028658), (39, 5586882), (42, 5187819), (49, 4446702), (62, 3514329), (63, 3458546), (78, 2793441), (91, 2394378), (93, 2342886), (98, 2223351), (117, 1862294), (126, 1729273), (147, 1482234), (182, 1197189), (186, 1171443), (217, 1004094), (234, 931147), (273, 798126), (279, 780962), (294, 741117), (403, 540666), (434, 502047), (441, 494078), (546, 399063), (558, 390481), (613, 355446), (637, 342054), (651, 334698), (806, 270333), (819, 266042), (882, 247039), (1209, 180222), (1226, 177723), (1274, 171027), (1302, 167349), (1519, 143442), (1638, 133021), (1839, 118482), (1911, 114018), (1953, 111566), (2418, 90111), (2821, 77238), (3038, 71721), (3627, 60074), (3678, 59241), (3822, 57009), (3906, 55783), (4291, 50778), (4557, 47814), (5517, 39494), (5642, 38619), (5733, 38006), (7254, 30037), (7969, 27342), (8463, 25746), (8582, 25389), (9114, 23907), (11034, 19747), (11466, 19003), (12873, 16926), (13671, 15938)]