21065286

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{13877}}^1$

素因数の和:13916

約数の個数: 32

約数和(自身を含む): 47962368

約数和(自身を除く): 26897082

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518, 13877, 27754, 41631, 83262, 152647, 305294, 319171, 457941, 638342, 915882, 957513, 1915026, 3510881, 7021762, 10532643, 21065286]

約数ペア:

[(1, 21065286), (2, 10532643), (3, 7021762), (6, 3510881), (11, 1915026), (22, 957513), (23, 915882), (33, 638342), (46, 457941), (66, 319171), (69, 305294), (138, 152647), (253, 83262), (506, 41631), (759, 27754), (1518, 13877)]