18516489004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{553789}}^1$

素因数の和:554449

約数の個数: 24

約数和(自身を含む): 34950794480

約数和(自身を除く): 16434305476

約数列:

[1, 2, 4, 13, 26, 52, 643, 1286, 2572, 8359, 16718, 33436, 553789, 1107578, 2215156, 7199257, 14398514, 28797028, 356086327, 712172654, 1424345308, 4629122251, 9258244502, 18516489004]

約数ペア:

[(1, 18516489004), (2, 9258244502), (4, 4629122251), (13, 1424345308), (26, 712172654), (52, 356086327), (643, 28797028), (1286, 14398514), (2572, 7199257), (8359, 2215156), (16718, 1107578), (33436, 553789)]