19542887

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 6261913

約数列:

[1, 7, 13, 19, 89, 91, 127, 133, 247, 623, 889, 1157, 1651, 1691, 1729, 2413, 8099, 11303, 11557, 11837, 16891, 21983, 31369, 79121, 146939, 153881, 214757, 219583, 1028573, 1503299, 2791841, 19542887]

約数ペア:

[(1, 19542887), (7, 2791841), (13, 1503299), (19, 1028573), (89, 219583), (91, 214757), (127, 153881), (133, 146939), (247, 79121), (623, 31369), (889, 21983), (1157, 16891), (1651, 11837), (1691, 11557), (1729, 11303), (2413, 8099)]