21324730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{863}}^1$

素因数の和:1230

約数の個数: 32

約数和(自身を含む): 44043264

約数和(自身を除く): 22718534

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 353, 706, 863, 1726, 1765, 2471, 3530, 4315, 4942, 6041, 8630, 12082, 12355, 24710, 30205, 60410, 304639, 609278, 1523195, 2132473, 3046390, 4264946, 10662365, 21324730]

約数ペア:

[(1, 21324730), (2, 10662365), (5, 4264946), (7, 3046390), (10, 2132473), (14, 1523195), (35, 609278), (70, 304639), (353, 60410), (706, 30205), (863, 24710), (1726, 12355), (1765, 12082), (2471, 8630), (3530, 6041), (4315, 4942)]