21839253

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{179}}^1\times {\mathrm{607}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 29767680

約数和(自身を除く): 7928427

約数列:

[1, 3, 67, 179, 201, 537, 607, 1821, 11993, 35979, 40669, 108653, 122007, 325959, 7279751, 21839253]

約数ペア:

[(1, 21839253), (3, 7279751), (67, 325959), (179, 122007), (201, 108653), (537, 40669), (607, 35979), (1821, 11993)]