388977477

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{43997}}^1$

素因数の和:44428

約数の個数: 16

約数和(自身を含む): 594148992

約数和(自身を除く): 205171515

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 8841, 43997, 131991, 307979, 923937, 18522737, 55568211, 129659159, 388977477]

約数ペア:

[(1, 388977477), (3, 129659159), (7, 55568211), (21, 18522737), (421, 923937), (1263, 307979), (2947, 131991), (8841, 43997)]