20941492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 44481024

約数和(自身を除く): 23539532

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 286, 341, 403, 572, 682, 806, 1181, 1364, 1612, 2362, 4433, 4724, 8866, 12991, 15353, 17732, 25982, 30706, 36611, 51964, 61412, 73222, 146444, 168883, 337766, 402721, 475943, 675532, 805442, 951886, 1610884, 1903772, 5235373, 10470746, 20941492]

約数ペア:

[(1, 20941492), (2, 10470746), (4, 5235373), (11, 1903772), (13, 1610884), (22, 951886), (26, 805442), (31, 675532), (44, 475943), (52, 402721), (62, 337766), (124, 168883), (143, 146444), (286, 73222), (341, 61412), (403, 51964), (572, 36611), (682, 30706), (806, 25982), (1181, 17732), (1364, 15353), (1612, 12991), (2362, 8866), (4433, 4724)]