212717988

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1321}}^1$

素因数の和:1415

約数の個数: 120

約数和(自身を含む): 644966784

約数和(自身を除く): 432248796

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 71, 81, 84, 108, 126, 142, 162, 189, 213, 252, 284, 324, 378, 426, 497, 567, 639, 756, 852, 994, 1134, 1278, 1321, 1491, 1917, 1988, 2268, 2556, 2642, 2982, 3834, 3963, 4473, 5284, 5751, 5964, 7668, 7926, 8946, 9247, 11502, 11889, 13419, 15852, 17892, 18494, 23004, 23778, 26838, 27741, 35667, 36988, 40257, 47556, 53676, 55482, 71334, 80514, 83223, 93791, 107001, 110964, 142668, 161028, 166446, 187582, 214002, 249669, 281373, 332892, 375164, 428004, 499338, 562746, 656537, 749007, 844119, 998676, 1125492, 1313074, 1498014, 1688238, 1969611, 2532357, 2626148, 2996028, 3376476, 3939222, 5064714, 5908833, 7597071, 7878444, 10129428, 11817666, 15194142, 17726499, 23635332, 30388284, 35452998, 53179497, 70905996, 106358994, 212717988]

約数ペア:

[(1, 212717988), (2, 106358994), (3, 70905996), (4, 53179497), (6, 35452998), (7, 30388284), (9, 23635332), (12, 17726499), (14, 15194142), (18, 11817666), (21, 10129428), (27, 7878444), (28, 7597071), (36, 5908833), (42, 5064714), (54, 3939222), (63, 3376476), (71, 2996028), (81, 2626148), (84, 2532357), (108, 1969611), (126, 1688238), (142, 1498014), (162, 1313074), (189, 1125492), (213, 998676), (252, 844119), (284, 749007), (324, 656537), (378, 562746), (426, 499338), (497, 428004), (567, 375164), (639, 332892), (756, 281373), (852, 249669), (994, 214002), (1134, 187582), (1278, 166446), (1321, 161028), (1491, 142668), (1917, 110964), (1988, 107001), (2268, 93791), (2556, 83223), (2642, 80514), (2982, 71334), (3834, 55482), (3963, 53676), (4473, 47556), (5284, 40257), (5751, 36988), (5964, 35667), (7668, 27741), (7926, 26838), (8946, 23778), (9247, 23004), (11502, 18494), (11889, 17892), (13419, 15852)]