217108540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{986857}}^1$

素因数の和:986877

約数の個数: 24

約数和(自身を含む): 497376432

約数和(自身を除く): 280267892

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 986857, 1973714, 3947428, 4934285, 9868570, 10855427, 19737140, 21710854, 43421708, 54277135, 108554270, 217108540]

約数ペア:

[(1, 217108540), (2, 108554270), (4, 54277135), (5, 43421708), (10, 21710854), (11, 19737140), (20, 10855427), (22, 9868570), (44, 4934285), (55, 3947428), (110, 1973714), (220, 986857)]