66664941

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{9649}}^1$

素因数の和:9713

約数の個数: 24

約数和(自身を含む): 105609600

約数和(自身を除く): 38944659

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 6909, 9649, 28947, 67543, 202629, 453503, 472801, 1360509, 1418403, 3174521, 9523563, 22221647, 66664941]

約数ペア:

[(1, 66664941), (3, 22221647), (7, 9523563), (21, 3174521), (47, 1418403), (49, 1360509), (141, 472801), (147, 453503), (329, 202629), (987, 67543), (2303, 28947), (6909, 9649)]