21568974

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3271}}^1$

素因数の和:3440

約数の個数: 32

約数和(自身を含む): 49629696

約数和(自身を除く): 28060722

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 157, 314, 471, 942, 1099, 2198, 3271, 3297, 6542, 6594, 9813, 19626, 22897, 45794, 68691, 137382, 513547, 1027094, 1540641, 3081282, 3594829, 7189658, 10784487, 21568974]

約数ペア:

[(1, 21568974), (2, 10784487), (3, 7189658), (6, 3594829), (7, 3081282), (14, 1540641), (21, 1027094), (42, 513547), (157, 137382), (314, 68691), (471, 45794), (942, 22897), (1099, 19626), (2198, 9813), (3271, 6594), (3297, 6542)]