21059955

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9551}}^1$

素因数の和:9576

約数の個数: 36

約数和(自身を含む): 42468192

約数和(自身を除く): 21408237

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9551, 28653, 47755, 66857, 85959, 143265, 200571, 334285, 429795, 467999, 601713, 1002855, 1403997, 2339995, 3008565, 4211991, 7019985, 21059955]

約数ペア:

[(1, 21059955), (3, 7019985), (5, 4211991), (7, 3008565), (9, 2339995), (15, 1403997), (21, 1002855), (35, 601713), (45, 467999), (49, 429795), (63, 334285), (105, 200571), (147, 143265), (245, 85959), (315, 66857), (441, 47755), (735, 28653), (2205, 9551)]