21853865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{10739}}^1$

素因数の和:10792

約数の個数: 16

約数和(自身を含む): 29384640

約数和(自身を除く): 7530775

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 10739, 53695, 118129, 397343, 590645, 1986715, 4370773, 21853865]

約数ペア:

[(1, 21853865), (5, 4370773), (11, 1986715), (37, 590645), (55, 397343), (185, 118129), (407, 53695), (2035, 10739)]