19225773

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 33386496

約数和(自身を除く): 14160723

約数列:

[1, 3, 7, 9, 21, 43, 47, 63, 129, 141, 151, 301, 329, 387, 423, 453, 903, 987, 1057, 1359, 2021, 2709, 2961, 3171, 6063, 6493, 7097, 9513, 14147, 18189, 19479, 21291, 42441, 45451, 49679, 58437, 63873, 127323, 136353, 149037, 305171, 409059, 447111, 915513, 2136197, 2746539, 6408591, 19225773]

約数ペア:

[(1, 19225773), (3, 6408591), (7, 2746539), (9, 2136197), (21, 915513), (43, 447111), (47, 409059), (63, 305171), (129, 149037), (141, 136353), (151, 127323), (301, 63873), (329, 58437), (387, 49679), (423, 45451), (453, 42441), (903, 21291), (987, 19479), (1057, 18189), (1359, 14147), (2021, 9513), (2709, 7097), (2961, 6493), (3171, 6063)]