19648508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1237}}^1$

素因数の和:1290

約数の個数: 36

約数和(自身を含む): 39620952

約数和(自身を除く): 19972444

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 361, 418, 722, 836, 1237, 1444, 2474, 3971, 4948, 7942, 13607, 15884, 23503, 27214, 47006, 54428, 94012, 258533, 446557, 517066, 893114, 1034132, 1786228, 4912127, 9824254, 19648508]

約数ペア:

[(1, 19648508), (2, 9824254), (4, 4912127), (11, 1786228), (19, 1034132), (22, 893114), (38, 517066), (44, 446557), (76, 258533), (209, 94012), (361, 54428), (418, 47006), (722, 27214), (836, 23503), (1237, 15884), (1444, 13607), (2474, 7942), (3971, 4948)]