21496857

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13597}}^1$

素因数の和:13648

約数の個数: 16

約数和(自身を含む): 31329792

約数和(自身を除く): 9832935

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13597, 40791, 231149, 421507, 693447, 1264521, 7165619, 21496857]

約数ペア:

[(1, 21496857), (3, 7165619), (17, 1264521), (31, 693447), (51, 421507), (93, 231149), (527, 40791), (1581, 13597)]