28717821

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:383

約数の個数: 40

約数和(自身を含む): 47323584

約数和(自身を除く): 18605763

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 167, 193, 297, 501, 579, 891, 1503, 1737, 1837, 2123, 4509, 5211, 5511, 6369, 13527, 15633, 16533, 19107, 32231, 49599, 57321, 96693, 148797, 171963, 290079, 354541, 870237, 1063623, 2610711, 3190869, 9572607, 28717821]

約数ペア:

[(1, 28717821), (3, 9572607), (9, 3190869), (11, 2610711), (27, 1063623), (33, 870237), (81, 354541), (99, 290079), (167, 171963), (193, 148797), (297, 96693), (501, 57321), (579, 49599), (891, 32231), (1503, 19107), (1737, 16533), (1837, 15633), (2123, 13527), (4509, 6369), (5211, 5511)]