19813235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 27699840

約数和(自身を除く): 7886605

約数列:

[1, 5, 13, 23, 29, 65, 115, 145, 299, 377, 457, 667, 1495, 1885, 2285, 3335, 5941, 8671, 10511, 13253, 29705, 43355, 52555, 66265, 136643, 172289, 304819, 683215, 861445, 1524095, 3962647, 19813235]

約数ペア:

[(1, 19813235), (5, 3962647), (13, 1524095), (23, 861445), (29, 683215), (65, 304819), (115, 172289), (145, 136643), (299, 66265), (377, 52555), (457, 43355), (667, 29705), (1495, 13253), (1885, 10511), (2285, 8671), (3335, 5941)]