20353879

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 6741161

約数列:

[1, 7, 13, 17, 59, 91, 119, 221, 223, 413, 767, 1003, 1547, 1561, 2899, 3791, 5369, 7021, 13039, 13157, 20293, 26537, 49283, 91273, 92099, 171041, 223669, 344981, 1197287, 1565683, 2907697, 20353879]

約数ペア:

[(1, 20353879), (7, 2907697), (13, 1565683), (17, 1197287), (59, 344981), (91, 223669), (119, 171041), (221, 92099), (223, 91273), (413, 49283), (767, 26537), (1003, 20293), (1547, 13157), (1561, 13039), (2899, 7021), (3791, 5369)]