21021809

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1759}}^1$

素因数の和:1832

約数の個数: 16

約数和(自身を含む): 24076800

約数和(自身を除く): 3054991

約数列:

[1, 17, 19, 37, 323, 629, 703, 1759, 11951, 29903, 33421, 65083, 568157, 1106411, 1236577, 21021809]

約数ペア:

[(1, 21021809), (17, 1236577), (19, 1106411), (37, 568157), (323, 65083), (629, 33421), (703, 29903), (1759, 11951)]