18536817

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 28643328

約数和(自身を除く): 10106511

約数列:

[1, 3, 13, 17, 39, 51, 73, 219, 221, 383, 663, 949, 1149, 1241, 2847, 3723, 4979, 6511, 14937, 16133, 19533, 27959, 48399, 83877, 84643, 253929, 363467, 475303, 1090401, 1425909, 6178939, 18536817]

約数ペア:

[(1, 18536817), (3, 6178939), (13, 1425909), (17, 1090401), (39, 475303), (51, 363467), (73, 253929), (219, 84643), (221, 83877), (383, 48399), (663, 27959), (949, 19533), (1149, 16133), (1241, 14937), (2847, 6511), (3723, 4979)]