21000686710

素因数分解:

$2^1\times 5^1\times {\mathrm{37967}}^1\times {\mathrm{55313}}^1$

素因数の和:93287

約数の個数: 16

約数和(自身を含む): 37802915136

約数和(自身を除く): 16802228426

約数列:

[1, 2, 5, 10, 37967, 55313, 75934, 110626, 189835, 276565, 379670, 553130, 2100068671, 4200137342, 10500343355, 21000686710]

約数ペア:

[(1, 21000686710), (2, 10500343355), (5, 4200137342), (10, 2100068671), (37967, 553130), (55313, 379670), (75934, 276565), (110626, 189835)]