20525778

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4177}}^1$

素因数の和:4208

約数の個数: 64

約数和(自身を含む): 56152320

約数和(自身を除く): 35626542

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4177, 4914, 8354, 12531, 25062, 29239, 37593, 54301, 58478, 75186, 87717, 108602, 112779, 162903, 175434, 225558, 263151, 325806, 380107, 488709, 526302, 760214, 789453, 977418, 1140321, 1466127, 1578906, 2280642, 2932254, 3420963, 6841926, 10262889, 20525778]

約数ペア:

[(1, 20525778), (2, 10262889), (3, 6841926), (6, 3420963), (7, 2932254), (9, 2280642), (13, 1578906), (14, 1466127), (18, 1140321), (21, 977418), (26, 789453), (27, 760214), (39, 526302), (42, 488709), (54, 380107), (63, 325806), (78, 263151), (91, 225558), (117, 175434), (126, 162903), (182, 112779), (189, 108602), (234, 87717), (273, 75186), (351, 58478), (378, 54301), (546, 37593), (702, 29239), (819, 25062), (1638, 12531), (2457, 8354), (4177, 4914)]