27997998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 38771922

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 71, 82, 123, 142, 213, 229, 246, 287, 426, 458, 497, 574, 687, 861, 994, 1374, 1491, 1603, 1722, 2911, 2982, 3206, 4809, 5822, 8733, 9389, 9618, 16259, 17466, 18778, 20377, 28167, 32518, 40754, 48777, 56334, 61131, 65723, 97554, 113813, 122262, 131446, 197169, 227626, 341439, 394338, 666619, 682878, 1333238, 1999857, 3999714, 4666333, 9332666, 13998999, 27997998]

約数ペア:

[(1, 27997998), (2, 13998999), (3, 9332666), (6, 4666333), (7, 3999714), (14, 1999857), (21, 1333238), (41, 682878), (42, 666619), (71, 394338), (82, 341439), (123, 227626), (142, 197169), (213, 131446), (229, 122262), (246, 113813), (287, 97554), (426, 65723), (458, 61131), (497, 56334), (574, 48777), (687, 40754), (861, 32518), (994, 28167), (1374, 20377), (1491, 18778), (1603, 17466), (1722, 16259), (2911, 9618), (2982, 9389), (3206, 8733), (4809, 5822)]