19638928

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{3517}}^1$

素因数の和:3874

約数の個数: 20

約数和(自身を含む): 38170300

約数和(自身を除く): 18531372

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 3517, 5584, 7034, 14068, 28136, 56272, 1227433, 2454866, 4909732, 9819464, 19638928]

約数ペア:

[(1, 19638928), (2, 9819464), (4, 4909732), (8, 2454866), (16, 1227433), (349, 56272), (698, 28136), (1396, 14068), (2792, 7034), (3517, 5584)]