21443210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112859}}^1$

素因数の和:112885

約数の個数: 16

約数和(自身を含む): 40629600

約数和(自身を除く): 19186390

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112859, 225718, 564295, 1128590, 2144321, 4288642, 10721605, 21443210]

約数ペア:

[(1, 21443210), (2, 10721605), (5, 4288642), (10, 2144321), (19, 1128590), (38, 564295), (95, 225718), (190, 112859)]