21197506

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{7963}}^1$

素因数の和:7998

約数の個数: 16

約数和(自身を含む): 34977888

約数和(自身を除く): 13780382

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 7963, 15926, 87593, 175186, 963523, 1927046, 10598753, 21197506]

約数ペア:

[(1, 21197506), (2, 10598753), (11, 1927046), (22, 963523), (121, 175186), (242, 87593), (1331, 15926), (2662, 7963)]