19691312

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:837

約数の個数: 40

約数和(自身を含む): 40411104

約数和(自身を除く): 20719792

約数列:

[1, 2, 4, 8, 16, 23, 46, 73, 92, 146, 184, 292, 368, 584, 733, 1168, 1466, 1679, 2932, 3358, 5864, 6716, 11728, 13432, 16859, 26864, 33718, 53509, 67436, 107018, 134872, 214036, 269744, 428072, 856144, 1230707, 2461414, 4922828, 9845656, 19691312]

約数ペア:

[(1, 19691312), (2, 9845656), (4, 4922828), (8, 2461414), (16, 1230707), (23, 856144), (46, 428072), (73, 269744), (92, 214036), (146, 134872), (184, 107018), (292, 67436), (368, 53509), (584, 33718), (733, 26864), (1168, 16859), (1466, 13432), (1679, 11728), (2932, 6716), (3358, 5864)]