21212478

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{168353}}^1$

素因数の和:168368

約数の個数: 24

約数和(自身を含む): 52526448

約数和(自身を除く): 31313970

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 168353, 336706, 505059, 1010118, 1178471, 1515177, 2356942, 3030354, 3535413, 7070826, 10606239, 21212478]

約数ペア:

[(1, 21212478), (2, 10606239), (3, 7070826), (6, 3535413), (7, 3030354), (9, 2356942), (14, 1515177), (18, 1178471), (21, 1010118), (42, 505059), (63, 336706), (126, 168353)]