20942776

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{153991}}^1$

素因数の和:154014

約数の個数: 16

約数和(自身を含む): 41577840

約数和(自身を除く): 20635064

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 153991, 307982, 615964, 1231928, 2617847, 5235694, 10471388, 20942776]

約数ペア:

[(1, 20942776), (2, 10471388), (4, 5235694), (8, 2617847), (17, 1231928), (34, 615964), (68, 307982), (136, 153991)]