21631401

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:614

約数の個数: 32

約数和(自身を含む): 35245440

約数和(自身を除く): 13614039

約数列:

[1, 3, 9, 11, 27, 33, 99, 173, 297, 421, 519, 1263, 1557, 1903, 3789, 4631, 4671, 5709, 11367, 13893, 17127, 41679, 51381, 72833, 125037, 218499, 655497, 801163, 1966491, 2403489, 7210467, 21631401]

約数ペア:

[(1, 21631401), (3, 7210467), (9, 2403489), (11, 1966491), (27, 801163), (33, 655497), (99, 218499), (173, 125037), (297, 72833), (421, 51381), (519, 41679), (1263, 17127), (1557, 13893), (1903, 11367), (3789, 5709), (4631, 4671)]