21404649

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59957}}^1$

素因数の和:59984

約数の個数: 16

約数和(自身を含む): 34535808

約数和(自身を除く): 13131159

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59957, 179871, 419699, 1019269, 1259097, 3057807, 7134883, 21404649]

約数ペア:

[(1, 21404649), (3, 7134883), (7, 3057807), (17, 1259097), (21, 1019269), (51, 419699), (119, 179871), (357, 59957)]