21663044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1621}}^1$

素因数の和:1895

約数の個数: 24

約数和(自身を含む): 41010648

約数和(自身を除く): 19347604

約数列:

[1, 2, 4, 13, 26, 52, 257, 514, 1028, 1621, 3242, 3341, 6484, 6682, 13364, 21073, 42146, 84292, 416597, 833194, 1666388, 5415761, 10831522, 21663044]

約数ペア:

[(1, 21663044), (2, 10831522), (4, 5415761), (13, 1666388), (26, 833194), (52, 416597), (257, 84292), (514, 42146), (1028, 21073), (1621, 13364), (3242, 6682), (3341, 6484)]