21774263

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2731}}^1$

素因数の和:2822

約数の個数: 16

約数和(自身を含む): 26751744

約数和(自身を除く): 4977481

約数列:

[1, 7, 17, 67, 119, 469, 1139, 2731, 7973, 19117, 46427, 182977, 324989, 1280839, 3110609, 21774263]

約数ペア:

[(1, 21774263), (7, 3110609), (17, 1280839), (67, 324989), (119, 182977), (469, 46427), (1139, 19117), (2731, 7973)]