21296650

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{3109}}^1$

素因数の和:3258

約数の個数: 24

約数和(自身を含む): 39913740

約数和(自身を除く): 18617090

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 685, 1370, 3109, 3425, 6218, 6850, 15545, 31090, 77725, 155450, 425933, 851866, 2129665, 4259330, 10648325, 21296650]

約数ペア:

[(1, 21296650), (2, 10648325), (5, 4259330), (10, 2129665), (25, 851866), (50, 425933), (137, 155450), (274, 77725), (685, 31090), (1370, 15545), (3109, 6850), (3425, 6218)]