21079898

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12653}}^1$

素因数の和:12686

約数の個数: 24

約数和(自身を含む): 38949012

約数和(自身を除く): 17869114

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12653, 25306, 88571, 177142, 215101, 430202, 619997, 1239994, 1505707, 3011414, 10539949, 21079898]

約数ペア:

[(1, 21079898), (2, 10539949), (7, 3011414), (14, 1505707), (17, 1239994), (34, 619997), (49, 430202), (98, 215101), (119, 177142), (238, 88571), (833, 25306), (1666, 12653)]