20907866

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{947}}^1$

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 17315494

約数列:

[1, 2, 7, 14, 19, 38, 83, 133, 166, 266, 581, 947, 1162, 1577, 1894, 3154, 6629, 11039, 13258, 17993, 22078, 35986, 78601, 125951, 157202, 251902, 550207, 1100414, 1493419, 2986838, 10453933, 20907866]

約数ペア:

[(1, 20907866), (2, 10453933), (7, 2986838), (14, 1493419), (19, 1100414), (38, 550207), (83, 251902), (133, 157202), (166, 125951), (266, 78601), (581, 35986), (947, 22078), (1162, 17993), (1577, 13258), (1894, 11039), (3154, 6629)]