21439700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{7393}}^1$

素因数の和:7436

約数の個数: 36

約数和(自身を含む): 48134940

約数和(自身を除く): 26695240

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 7393, 14786, 29572, 36965, 73930, 147860, 184825, 214397, 369650, 428794, 739300, 857588, 1071985, 2143970, 4287940, 5359925, 10719850, 21439700]

約数ペア:

[(1, 21439700), (2, 10719850), (4, 5359925), (5, 4287940), (10, 2143970), (20, 1071985), (25, 857588), (29, 739300), (50, 428794), (58, 369650), (100, 214397), (116, 184825), (145, 147860), (290, 73930), (580, 36965), (725, 29572), (1450, 14786), (2900, 7393)]