18148936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1601}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 37006200

約数和(自身を除く): 18857264

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 1601, 2834, 3202, 5668, 6404, 11336, 12808, 20813, 41626, 83252, 166504, 174509, 349018, 698036, 1396072, 2268617, 4537234, 9074468, 18148936]

約数ペア:

[(1, 18148936), (2, 9074468), (4, 4537234), (8, 2268617), (13, 1396072), (26, 698036), (52, 349018), (104, 174509), (109, 166504), (218, 83252), (436, 41626), (872, 20813), (1417, 12808), (1601, 11336), (2834, 6404), (3202, 5668)]