21708170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197347}}^1$

素因数の和:197365

約数の個数: 16

約数和(自身を含む): 42627168

約数和(自身を除く): 20918998

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197347, 394694, 986735, 1973470, 2170817, 4341634, 10854085, 21708170]

約数ペア:

[(1, 21708170), (2, 10854085), (5, 4341634), (10, 2170817), (11, 1973470), (22, 986735), (55, 394694), (110, 197347)]