18153928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1009}}^1$

素因数の和:1201

約数の個数: 32

約数和(自身を含む): 36905400

約数和(自身を除く): 18751472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1009, 1384, 2018, 2249, 4036, 4498, 8072, 8996, 13117, 17992, 26234, 52468, 104936, 174557, 349114, 698228, 1396456, 2269241, 4538482, 9076964, 18153928]

約数ペア:

[(1, 18153928), (2, 9076964), (4, 4538482), (8, 2269241), (13, 1396456), (26, 698228), (52, 349114), (104, 174557), (173, 104936), (346, 52468), (692, 26234), (1009, 17992), (1384, 13117), (2018, 8996), (2249, 8072), (4036, 4498)]