20668846

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 15256274

約数列:

[1, 2, 11, 19, 22, 38, 197, 209, 251, 394, 418, 502, 2167, 2761, 3743, 4334, 4769, 5522, 7486, 9538, 41173, 49447, 52459, 82346, 98894, 104918, 543917, 939493, 1087834, 1878986, 10334423, 20668846]

約数ペア:

[(1, 20668846), (2, 10334423), (11, 1878986), (19, 1087834), (22, 939493), (38, 543917), (197, 104918), (209, 98894), (251, 82346), (394, 52459), (418, 49447), (502, 41173), (2167, 9538), (2761, 7486), (3743, 5522), (4334, 4769)]