21951045

素因数分解:

$3^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{761}}^1$

素因数の和:1413

約数の個数: 24

約数和(自身を含む): 38157912

約数和(自身を除く): 16206867

約数列:

[1, 3, 5, 9, 15, 45, 641, 761, 1923, 2283, 3205, 3805, 5769, 6849, 9615, 11415, 28845, 34245, 487801, 1463403, 2439005, 4390209, 7317015, 21951045]

約数ペア:

[(1, 21951045), (3, 7317015), (5, 4390209), (9, 2439005), (15, 1463403), (45, 487801), (641, 34245), (761, 28845), (1923, 11415), (2283, 9615), (3205, 6849), (3805, 5769)]