28140387

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1213}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 44286720

約数和(自身を除く): 16146333

約数列:

[1, 3, 11, 19, 33, 37, 57, 111, 209, 407, 627, 703, 1213, 1221, 2109, 3639, 7733, 13343, 23047, 23199, 40029, 44881, 69141, 134643, 253517, 493691, 760551, 852739, 1481073, 2558217, 9380129, 28140387]

約数ペア:

[(1, 28140387), (3, 9380129), (11, 2558217), (19, 1481073), (33, 852739), (37, 760551), (57, 493691), (111, 253517), (209, 134643), (407, 69141), (627, 44881), (703, 40029), (1213, 23199), (1221, 23047), (2109, 13343), (3639, 7733)]