21056770

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{877}}^1$

素因数の和:912

約数の個数: 40

約数和(自身を含む): 44267004

約数和(自身を除く): 23210234

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 877, 1715, 1754, 2401, 3430, 4385, 4802, 6139, 8770, 12005, 12278, 24010, 30695, 42973, 61390, 85946, 214865, 300811, 429730, 601622, 1504055, 2105677, 3008110, 4211354, 10528385, 21056770]

約数ペア:

[(1, 21056770), (2, 10528385), (5, 4211354), (7, 3008110), (10, 2105677), (14, 1504055), (35, 601622), (49, 429730), (70, 300811), (98, 214865), (245, 85946), (343, 61390), (490, 42973), (686, 30695), (877, 24010), (1715, 12278), (1754, 12005), (2401, 8770), (3430, 6139), (4385, 4802)]