19189821

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{1097}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 31622400

約数和(自身を除く): 12432579

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 343, 357, 833, 1029, 1097, 2499, 3291, 5831, 7679, 17493, 18649, 23037, 53753, 55947, 130543, 161259, 376271, 391629, 913801, 1128813, 2741403, 6396607, 19189821]

約数ペア:

[(1, 19189821), (3, 6396607), (7, 2741403), (17, 1128813), (21, 913801), (49, 391629), (51, 376271), (119, 161259), (147, 130543), (343, 55947), (357, 53753), (833, 23037), (1029, 18649), (1097, 17493), (2499, 7679), (3291, 5831)]