19666448

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{7829}}^1$

素因数の和:7994

約数の個数: 20

約数和(自身を含む): 38351340

約数和(自身を除く): 18684892

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 7829, 15658, 31316, 62632, 125264, 1229153, 2458306, 4916612, 9833224, 19666448]

約数ペア:

[(1, 19666448), (2, 9833224), (4, 4916612), (8, 2458306), (16, 1229153), (157, 125264), (314, 62632), (628, 31316), (1256, 15658), (2512, 7829)]