19453967

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 24131520

約数和(自身を除く): 4677553

約数列:

[1, 13, 17, 19, 41, 113, 221, 247, 323, 533, 697, 779, 1469, 1921, 2147, 4199, 4633, 9061, 10127, 13243, 24973, 27911, 36499, 60229, 78761, 88027, 172159, 474487, 1023893, 1144351, 1496459, 19453967]

約数ペア:

[(1, 19453967), (13, 1496459), (17, 1144351), (19, 1023893), (41, 474487), (113, 172159), (221, 88027), (247, 78761), (323, 60229), (533, 36499), (697, 27911), (779, 24973), (1469, 13243), (1921, 10127), (2147, 9061), (4199, 4633)]