21686028

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2837}}^1$

素因数の和:2871

約数の個数: 72

約数和(自身を含む): 63412272

約数和(自身を除く): 41726244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 2837, 3822, 5674, 7644, 8511, 11348, 17022, 19859, 34044, 36881, 39718, 59577, 73762, 79436, 110643, 119154, 139013, 147524, 221286, 238308, 258167, 278026, 417039, 442572, 516334, 556052, 774501, 834078, 1032668, 1549002, 1668156, 1807169, 3098004, 3614338, 5421507, 7228676, 10843014, 21686028]

約数ペア:

[(1, 21686028), (2, 10843014), (3, 7228676), (4, 5421507), (6, 3614338), (7, 3098004), (12, 1807169), (13, 1668156), (14, 1549002), (21, 1032668), (26, 834078), (28, 774501), (39, 556052), (42, 516334), (49, 442572), (52, 417039), (78, 278026), (84, 258167), (91, 238308), (98, 221286), (147, 147524), (156, 139013), (182, 119154), (196, 110643), (273, 79436), (294, 73762), (364, 59577), (546, 39718), (588, 36881), (637, 34044), (1092, 19859), (1274, 17022), (1911, 11348), (2548, 8511), (2837, 7644), (3822, 5674)]