20121277

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 22569984

約数和(自身を除く): 2448707

約数列:

[1, 11, 61, 157, 191, 671, 1727, 2101, 9577, 11651, 29987, 105347, 128161, 329857, 1829207, 20121277]

約数ペア:

[(1, 20121277), (11, 1829207), (61, 329857), (157, 128161), (191, 105347), (671, 29987), (1727, 11651), (2101, 9577)]