19616944

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28513}}^1$

素因数の和:28564

約数の個数: 20

約数和(自身を含む): 38893096

約数和(自身を除く): 19276152

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28513, 57026, 114052, 228104, 456208, 1226059, 2452118, 4904236, 9808472, 19616944]

約数ペア:

[(1, 19616944), (2, 9808472), (4, 4904236), (8, 2452118), (16, 1226059), (43, 456208), (86, 228104), (172, 114052), (344, 57026), (688, 28513)]