18656768

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2803}}^1$

素因数の和:2834

約数の個数: 40

約数和(自身を含む): 40158888

約数和(自身を除く): 21502120

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 2803, 3328, 5606, 6656, 11212, 22424, 36439, 44848, 72878, 89696, 145756, 179392, 291512, 358784, 583024, 717568, 1166048, 1435136, 2332096, 4664192, 9328384, 18656768]

約数ペア:

[(1, 18656768), (2, 9328384), (4, 4664192), (8, 2332096), (13, 1435136), (16, 1166048), (26, 717568), (32, 583024), (52, 358784), (64, 291512), (104, 179392), (128, 145756), (208, 89696), (256, 72878), (416, 44848), (512, 36439), (832, 22424), (1664, 11212), (2803, 6656), (3328, 5606)]