21506058

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 57238272

約数和(自身を除く): 35732214

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 41, 42, 46, 63, 69, 82, 123, 126, 138, 161, 181, 207, 246, 287, 322, 362, 369, 414, 483, 543, 574, 738, 861, 943, 966, 1086, 1267, 1449, 1629, 1722, 1886, 2534, 2583, 2829, 2898, 3258, 3801, 4163, 5166, 5658, 6601, 7421, 7602, 8326, 8487, 11403, 12489, 13202, 14842, 16974, 19803, 22263, 22806, 24978, 29141, 37467, 39606, 44526, 51947, 58282, 59409, 66789, 74934, 87423, 103894, 118818, 133578, 155841, 170683, 174846, 262269, 311682, 341366, 467523, 512049, 524538, 935046, 1024098, 1194781, 1536147, 2389562, 3072294, 3584343, 7168686, 10753029, 21506058]

約数ペア:

[(1, 21506058), (2, 10753029), (3, 7168686), (6, 3584343), (7, 3072294), (9, 2389562), (14, 1536147), (18, 1194781), (21, 1024098), (23, 935046), (41, 524538), (42, 512049), (46, 467523), (63, 341366), (69, 311682), (82, 262269), (123, 174846), (126, 170683), (138, 155841), (161, 133578), (181, 118818), (207, 103894), (246, 87423), (287, 74934), (322, 66789), (362, 59409), (369, 58282), (414, 51947), (483, 44526), (543, 39606), (574, 37467), (738, 29141), (861, 24978), (943, 22806), (966, 22263), (1086, 19803), (1267, 16974), (1449, 14842), (1629, 13202), (1722, 12489), (1886, 11403), (2534, 8487), (2583, 8326), (2829, 7602), (2898, 7421), (3258, 6601), (3801, 5658), (4163, 5166)]