21406468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13687}}^1$

素因数の和:13731

約数の個数: 24

約数和(自身を含む): 41392512

約数和(自身を除く): 19986044

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13687, 27374, 54748, 232679, 314801, 465358, 629602, 930716, 1259204, 5351617, 10703234, 21406468]

約数ペア:

[(1, 21406468), (2, 10703234), (4, 5351617), (17, 1259204), (23, 930716), (34, 629602), (46, 465358), (68, 314801), (92, 232679), (391, 54748), (782, 27374), (1564, 13687)]