191893407

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 278181120

約数和(自身を除く): 86287713

約数列:

[1, 3, 19, 41, 57, 123, 157, 471, 523, 779, 1569, 2337, 2983, 6437, 8949, 9937, 19311, 21443, 29811, 64329, 82111, 122303, 246333, 366909, 407417, 1222251, 1560109, 3366551, 4680327, 10099653, 63964469, 191893407]

約数ペア:

[(1, 191893407), (3, 63964469), (19, 10099653), (41, 4680327), (57, 3366551), (123, 1560109), (157, 1222251), (471, 407417), (523, 366909), (779, 246333), (1569, 122303), (2337, 82111), (2983, 64329), (6437, 29811), (8949, 21443), (9937, 19311)]