21400810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{93047}}^1$

素因数の和:93077

約数の個数: 16

約数和(自身を含む): 40196736

約数和(自身を除く): 18795926

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 93047, 186094, 465235, 930470, 2140081, 4280162, 10700405, 21400810]

約数ペア:

[(1, 21400810), (2, 10700405), (5, 4280162), (10, 2140081), (23, 930470), (46, 465235), (115, 186094), (230, 93047)]