21717290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 27924694

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 41, 46, 47, 49, 70, 82, 94, 98, 115, 161, 205, 230, 235, 245, 287, 322, 329, 410, 470, 490, 574, 658, 805, 943, 1081, 1127, 1435, 1610, 1645, 1886, 1927, 2009, 2162, 2254, 2303, 2870, 3290, 3854, 4018, 4606, 4715, 5405, 5635, 6601, 7567, 9430, 9635, 10045, 10810, 11270, 11515, 13202, 13489, 15134, 19270, 20090, 23030, 26978, 33005, 37835, 44321, 46207, 52969, 66010, 67445, 75670, 88642, 92414, 94423, 105938, 134890, 188846, 221605, 231035, 264845, 310247, 443210, 462070, 472115, 529690, 620494, 944230, 1551235, 2171729, 3102470, 4343458, 10858645, 21717290]

約数ペア:

[(1, 21717290), (2, 10858645), (5, 4343458), (7, 3102470), (10, 2171729), (14, 1551235), (23, 944230), (35, 620494), (41, 529690), (46, 472115), (47, 462070), (49, 443210), (70, 310247), (82, 264845), (94, 231035), (98, 221605), (115, 188846), (161, 134890), (205, 105938), (230, 94423), (235, 92414), (245, 88642), (287, 75670), (322, 67445), (329, 66010), (410, 52969), (470, 46207), (490, 44321), (574, 37835), (658, 33005), (805, 26978), (943, 23030), (1081, 20090), (1127, 19270), (1435, 15134), (1610, 13489), (1645, 13202), (1886, 11515), (1927, 11270), (2009, 10810), (2162, 10045), (2254, 9635), (2303, 9430), (2870, 7567), (3290, 6601), (3854, 5635), (4018, 5405), (4606, 4715)]