21290790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709693}}^1$

素因数の和:709703

約数の個数: 16

約数和(自身を含む): 51097968

約数和(自身を除く): 29807178

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709693, 1419386, 2129079, 3548465, 4258158, 7096930, 10645395, 21290790]

約数ペア:

[(1, 21290790), (2, 10645395), (3, 7096930), (5, 4258158), (6, 3548465), (10, 2129079), (15, 1419386), (30, 709693)]