21621726

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1093}}^1$

素因数の和:1265

約数の個数: 48

約数和(自身を含む): 53929824

約数和(自身を除く): 32308098

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 157, 314, 471, 942, 1093, 1099, 1413, 2186, 2198, 2826, 3279, 3297, 6558, 6594, 7651, 9837, 9891, 15302, 19674, 19782, 22953, 45906, 68859, 137718, 171601, 343202, 514803, 1029606, 1201207, 1544409, 2402414, 3088818, 3603621, 7207242, 10810863, 21621726]

約数ペア:

[(1, 21621726), (2, 10810863), (3, 7207242), (6, 3603621), (7, 3088818), (9, 2402414), (14, 1544409), (18, 1201207), (21, 1029606), (42, 514803), (63, 343202), (126, 171601), (157, 137718), (314, 68859), (471, 45906), (942, 22953), (1093, 19782), (1099, 19674), (1413, 15302), (2186, 9891), (2198, 9837), (2826, 7651), (3279, 6594), (3297, 6558)]