21112491

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{739}}^1$

素因数の和:938

約数の個数: 16

約数和(自身を含む): 28771200

約数和(自身を除く): 7658709

約数列:

[1, 3, 89, 107, 267, 321, 739, 2217, 9523, 28569, 65771, 79073, 197313, 237219, 7037497, 21112491]

約数ペア:

[(1, 21112491), (3, 7037497), (89, 237219), (107, 197313), (267, 79073), (321, 65771), (739, 28569), (2217, 9523)]