20715838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{641}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 36886752

約数和(自身を除く): 16170914

約数列:

[1, 2, 11, 13, 22, 26, 113, 143, 226, 286, 641, 1243, 1282, 1469, 2486, 2938, 7051, 8333, 14102, 16159, 16666, 32318, 72433, 91663, 144866, 183326, 796763, 941629, 1593526, 1883258, 10357919, 20715838]

約数ペア:

[(1, 20715838), (2, 10357919), (11, 1883258), (13, 1593526), (22, 941629), (26, 796763), (113, 183326), (143, 144866), (226, 91663), (286, 72433), (641, 32318), (1243, 16666), (1282, 16159), (1469, 14102), (2486, 8333), (2938, 7051)]