21863897

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 24912384

約数和(自身を除く): 3048487

約数列:

[1, 11, 31, 97, 341, 661, 1067, 3007, 7271, 20491, 33077, 64117, 225401, 705287, 1987627, 21863897]

約数ペア:

[(1, 21863897), (11, 1987627), (31, 705287), (97, 225401), (341, 64117), (661, 33077), (1067, 20491), (3007, 7271)]