18917776

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{51407}}^1$

素因数の和:51438

約数の個数: 20

約数和(自身を含む): 38247552

約数和(自身を除く): 19329776

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 51407, 102814, 205628, 411256, 822512, 1182361, 2364722, 4729444, 9458888, 18917776]

約数ペア:

[(1, 18917776), (2, 9458888), (4, 4729444), (8, 2364722), (16, 1182361), (23, 822512), (46, 411256), (92, 205628), (184, 102814), (368, 51407)]