18641038

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:580

約数の個数: 24

約数和(自身を含む): 30581496

約数和(自身を除く): 11940458

約数列:

[1, 2, 13, 26, 131, 169, 262, 338, 421, 842, 1703, 3406, 5473, 10946, 22139, 44278, 55151, 71149, 110302, 142298, 716963, 1433926, 9320519, 18641038]

約数ペア:

[(1, 18641038), (2, 9320519), (13, 1433926), (26, 716963), (131, 142298), (169, 110302), (262, 71149), (338, 55151), (421, 44278), (842, 22139), (1703, 10946), (3406, 5473)]