21558214

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1215

約数の個数: 16

約数和(自身を含む): 33033600

約数和(自身を除く): 11475386

約数列:

[1, 2, 73, 146, 149, 298, 991, 1982, 10877, 21754, 72343, 144686, 147659, 295318, 10779107, 21558214]

約数ペア:

[(1, 21558214), (2, 10779107), (73, 295318), (146, 147659), (149, 144686), (298, 72343), (991, 21754), (1982, 10877)]