21420008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86371}}^1$

素因数の和:86408

約数の個数: 16

約数和(自身を含む): 41458560

約数和(自身を除く): 20038552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86371, 172742, 345484, 690968, 2677501, 5355002, 10710004, 21420008]

約数ペア:

[(1, 21420008), (2, 10710004), (4, 5355002), (8, 2677501), (31, 690968), (62, 345484), (124, 172742), (248, 86371)]