21147468

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{19801}}^1$

素因数の和:19897

約数の個数: 24

約数和(自身を含む): 49901040

約数和(自身を除く): 28753572

約数列:

[1, 2, 3, 4, 6, 12, 89, 178, 267, 356, 534, 1068, 19801, 39602, 59403, 79204, 118806, 237612, 1762289, 3524578, 5286867, 7049156, 10573734, 21147468]

約数ペア:

[(1, 21147468), (2, 10573734), (3, 7049156), (4, 5286867), (6, 3524578), (12, 1762289), (89, 237612), (178, 118806), (267, 79204), (356, 59403), (534, 39602), (1068, 19801)]