21279006

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{601}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 52966368

約数和(自身を除く): 31687362

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 281, 562, 601, 843, 1202, 1686, 1803, 1967, 2529, 3606, 3934, 4207, 5058, 5409, 5901, 8414, 10818, 11802, 12621, 17703, 25242, 35406, 37863, 75726, 168881, 337762, 506643, 1013286, 1182167, 1519929, 2364334, 3039858, 3546501, 7093002, 10639503, 21279006]

約数ペア:

[(1, 21279006), (2, 10639503), (3, 7093002), (6, 3546501), (7, 3039858), (9, 2364334), (14, 1519929), (18, 1182167), (21, 1013286), (42, 506643), (63, 337762), (126, 168881), (281, 75726), (562, 37863), (601, 35406), (843, 25242), (1202, 17703), (1686, 12621), (1803, 11802), (1967, 10818), (2529, 8414), (3606, 5901), (3934, 5409), (4207, 5058)]