20907502

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1069}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 39444480

約数和(自身を除く): 18536978

約数列:

[1, 2, 7, 11, 14, 22, 77, 127, 154, 254, 889, 1069, 1397, 1778, 2138, 2794, 7483, 9779, 11759, 14966, 19558, 23518, 82313, 135763, 164626, 271526, 950341, 1493393, 1900682, 2986786, 10453751, 20907502]

約数ペア:

[(1, 20907502), (2, 10453751), (7, 2986786), (11, 1900682), (14, 1493393), (22, 950341), (77, 271526), (127, 164626), (154, 135763), (254, 82313), (889, 23518), (1069, 19558), (1397, 14966), (1778, 11759), (2138, 9779), (2794, 7483)]