21898244

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1283}}^1$

素因数の和:1555

約数の個数: 24

約数和(自身を含む): 40769568

約数和(自身を除く): 18871324

約数列:

[1, 2, 4, 17, 34, 68, 251, 502, 1004, 1283, 2566, 4267, 5132, 8534, 17068, 21811, 43622, 87244, 322033, 644066, 1288132, 5474561, 10949122, 21898244]

約数ペア:

[(1, 21898244), (2, 10949122), (4, 5474561), (17, 1288132), (34, 644066), (68, 322033), (251, 87244), (502, 43622), (1004, 21811), (1283, 17068), (2566, 8534), (4267, 5132)]