21048399358

素因数分解:

$2^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3571157}}^1$

素因数の和:3571587

約数の個数: 16

約数和(自身を含む): 36168688224

約数和(自身を除く): 15120288866

約数列:

[1, 2, 7, 14, 421, 842, 2947, 5894, 3571157, 7142314, 24998099, 49996198, 1503457097, 3006914194, 10524199679, 21048399358]

約数ペア:

[(1, 21048399358), (2, 10524199679), (7, 3006914194), (14, 1503457097), (421, 49996198), (842, 24998099), (2947, 7142314), (5894, 3571157)]