21549138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{641}}^1$

素因数の和:1090

約数の個数: 32

約数和(自身を含む): 46593792

約数和(自身を除く): 25044654

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 431, 641, 862, 1282, 1293, 1923, 2586, 3846, 5603, 8333, 11206, 16666, 16809, 24999, 33618, 49998, 276271, 552542, 828813, 1657626, 3591523, 7183046, 10774569, 21549138]

約数ペア:

[(1, 21549138), (2, 10774569), (3, 7183046), (6, 3591523), (13, 1657626), (26, 828813), (39, 552542), (78, 276271), (431, 49998), (641, 33618), (862, 24999), (1282, 16809), (1293, 16666), (1923, 11206), (2586, 8333), (3846, 5603)]