21143732

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{278207}}^1$

素因数の和:278230

約数の個数: 12

約数和(自身を含む): 38949120

約数和(自身を除く): 17805388

約数列:

[1, 2, 4, 19, 38, 76, 278207, 556414, 1112828, 5285933, 10571866, 21143732]

約数ペア:

[(1, 21143732), (2, 10571866), (4, 5285933), (19, 1112828), (38, 556414), (76, 278207)]