20817342

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:278

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 35791938

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 71, 78, 91, 117, 126, 142, 179, 182, 213, 234, 273, 358, 426, 497, 537, 546, 639, 819, 923, 994, 1074, 1253, 1278, 1491, 1611, 1638, 1846, 2327, 2506, 2769, 2982, 3222, 3759, 4473, 4654, 5538, 6461, 6981, 7518, 8307, 8946, 11277, 12709, 12922, 13962, 16289, 16614, 19383, 20943, 22554, 25418, 32578, 38127, 38766, 41886, 48867, 58149, 76254, 88963, 97734, 114381, 116298, 146601, 165217, 177926, 228762, 266889, 293202, 330434, 495651, 533778, 800667, 991302, 1156519, 1486953, 1601334, 2313038, 2973906, 3469557, 6939114, 10408671, 20817342]

約数ペア:

[(1, 20817342), (2, 10408671), (3, 6939114), (6, 3469557), (7, 2973906), (9, 2313038), (13, 1601334), (14, 1486953), (18, 1156519), (21, 991302), (26, 800667), (39, 533778), (42, 495651), (63, 330434), (71, 293202), (78, 266889), (91, 228762), (117, 177926), (126, 165217), (142, 146601), (179, 116298), (182, 114381), (213, 97734), (234, 88963), (273, 76254), (358, 58149), (426, 48867), (497, 41886), (537, 38766), (546, 38127), (639, 32578), (819, 25418), (923, 22554), (994, 20943), (1074, 19383), (1253, 16614), (1278, 16289), (1491, 13962), (1611, 12922), (1638, 12709), (1846, 11277), (2327, 8946), (2506, 8307), (2769, 7518), (2982, 6981), (3222, 6461), (3759, 5538), (4473, 4654)]